PASSERIFORMES of the suborder, Oscines, in which the flexor tendons of the toes are separate, and the lower syrinx has 4 to 9 pairs of tensor muscles inserted at both ends of the tracheal half rings. They include many commonly recognized birds such as CROWS; FINCHES; robins; SPARROWS; and SWALLOWS.
Sounds used in animal communication.
Common name for small PASSERIFORMES in the family Fringillidae. They have a short stout bill (BEAK) adapted for crushing SEEDS. Some species of Old World finches are called CANARIES.
Modulation of human voice to produce sounds augmented by musical tonality and rhythm.
The family Sturnidae, in the order PASSERIFORMES. The starling family also includes mynahs and oxpeckers.
Nucleus in the NEOSTRIATUM of bird brains that sends signals for song production and receives auditory input. In some adult SONGBIRDS, research has shown that the size of this nucleus changes seasonally and that it exhibits neurogenesis.
The family Passeridae comprised of small, mainly brown and grey seed-eating birds with conical bills.
Any of several Old World finches of the genus Serinus.
Periodic movements of animals in response to seasonal changes or reproductive instinct. Hormonal changes are the trigger in at least some animals. Most migrations are made for reasons of climatic change, feeding, or breeding.
The graphic registration of the frequency and intensity of sounds, such as speech, infant crying, and animal vocalizations.
The anterior of the three primitive cerebral vesicles of the embryonic brain arising from the NEURAL TUBE. It subdivides to form DIENCEPHALON and TELENCEPHALON. (Stedmans Medical Dictionary, 27th ed)
Communication between animals involving the giving off by one individual of some chemical or physical signal, that, on being received by another, influences its behavior.
NEURAL PATHWAYS and connections within the CENTRAL NERVOUS SYSTEM, beginning at the hair cells of the ORGAN OF CORTI, continuing along the eighth cranial nerve, and terminating at the AUDITORY CORTEX.
Warm-blooded VERTEBRATES possessing FEATHERS and belonging to the class Aves.
The process whereby auditory stimuli are selected, organized, and interpreted by the organism.
A widely distributed order of perching BIRDS, including more than half of all bird species.
Relatively permanent change in behavior that is the result of past experience or practice. The concept includes the acquisition of knowledge.
Large subcortical nuclear masses derived from the telencephalon and located in the basal regions of the cerebral hemispheres.
Use of sound to elicit a response in the nervous system.
In some animals, the jaws together with their horny covering. The beak usually refers to the bill of birds in which the whole varies greatly in form according of the food and habits of the bird. While the beak refers most commonly to birds, the anatomical counterpart is found also in the turtle, squid, and octopus. (From Webster, 3d ed & Storer, et al., General Zoology, 6th ed, p491, 755)
Behavior in defense of an area against another individual or individuals primarily of the same species.
The anterior subdivision of the embryonic PROSENCEPHALON or the corresponding part of the adult prosencephalon that includes the cerebrum and associated structures.
The discipline pertaining to the study of animal behavior.
Thin-walled sacs or spaces which function as a part of the respiratory system in birds, fishes, insects, and mammals.
Divisions of the year according to some regularly recurrent phenomena usually astronomical or climatic. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
The branch of physics that deals with sound and sound waves. In medicine it is often applied in procedures in speech and hearing studies. With regard to the environment, it refers to the characteristics of a room, auditorium, theatre, building, etc. that determines the audibility or fidelity of sounds in it. (From Random House Unabridged Dictionary, 2d ed)
Sexual activities of animals.
A suborder of chewing lice, in the order PHTHIRAPTERA, that are ectoparasites of poultry and some mammals.
A republic in western Africa, southwest of ALGERIA and west of MALI. Its capital is Nouakchott.
BIRDS of the large family Psittacidae, widely distributed in tropical regions and having a distinctive stout, curved hooked bill. The family includes LOVEBIRDS; AMAZON PARROTS; conures; PARAKEETS; and many other kinds of parrots.
Flat keratinous structures found on the skin surface of birds. Feathers are made partly of a hollow shaft fringed with barbs. They constitute the plumage.
A system using beamed and reflected radio signals to and from an object in such a way that range, bearing, and other characteristics of the object may be determined.
A type of non-ionizing radiation in which energy is transmitted through solid, liquid, or gas as compression waves. Sound (acoustic or sonic) radiation with frequencies above the audible range is classified as ultrasonic. Sound radiation below the audible range is classified as infrasonic.
The part of CENTRAL NERVOUS SYSTEM that is contained within the skull (CRANIUM). Arising from the NEURAL TUBE, the embryonic brain is comprised of three major parts including PROSENCEPHALON (the forebrain); MESENCEPHALON (the midbrain); and RHOMBENCEPHALON (the hindbrain). The developed brain consists of CEREBRUM; CEREBELLUM; and other structures in the BRAIN STEM.
Periodic casting off FEATHERS; HAIR; or cuticle. Molting is a process of sloughing or desquamation, especially the shedding of an outer covering and the development of a new one. This phenomenon permits growth in ARTHROPODS, skin renewal in AMPHIBIANS and REPTILES, and the shedding of winter coats in BIRDS and MAMMALS.
Animal behavior associated with the nest; includes construction, effects of size and material; behavior of the adult during the nesting period and the effect of the nest on the behavior of the young.
The time period of daily exposure that an organism receives from daylight or artificial light. It is believed that photoperiodic responses may affect the control of energy balance and thermoregulation.
Common name for one of five species of small PARROTS, containing long tails.
The region of the cerebral cortex that receives the auditory radiation from the MEDIAL GENICULATE BODY.
Neural tracts connecting one part of the nervous system with another.
A suborder of chewing lice, in the order PHTHIRAPTERA, that are parasites of birds and mammals.
The observable response an animal makes to any situation.
The use of wings or wing-like appendages to remain aloft and move through the air.
A selective aromatase inhibitor effective in the treatment of estrogen-dependent disease including breast cancer.
Diseases of birds not considered poultry, therefore usually found in zoos, parks, and the wild. The concept is differentiated from POULTRY DISEASES which is for birds raised as a source of meat or eggs for human consumption, and usually found in barnyards, hatcheries, etc.
Purulent infections of the conjunctiva by several species of gram-negative, gram-positive, or acid-fast organisms. Some of the more commonly found genera causing conjunctival infections are Haemophilus, Streptococcus, Neisseria, and Chlamydia.
The basic cellular units of nervous tissue. Each neuron consists of a body, an axon, and dendrites. Their purpose is to receive, conduct, and transmit impulses in the NERVOUS SYSTEM.
The phylogenetically newer part of the CORPUS STRIATUM consisting of the CAUDATE NUCLEUS and PUTAMEN. It is often called simply the striatum.
The total process by which organisms produce offspring. (Stedman, 25th ed)
A mechanism of communicating one's own sensory system information about a task, movement or skill.
Recording of information on magnetic or punched paper tape.
An order of heteroxenous protozoa in which the macrogamete and microgamont develop independently. A conoid is usually absent.
Large bodies consisting of self-luminous gas held together by their own gravity. (From McGraw Hill Dictionary of Scientific and Technical Terms, 6th ed)
A species of gram-negative bacteria causing CONJUNCTIVITIS and KERATOCONJUNCTIVITIS in SHEEP and GOATS.
Nerve structures through which impulses are conducted from a nerve center toward a peripheral site. Such impulses are conducted via efferent neurons (NEURONS, EFFERENT), such as MOTOR NEURONS, autonomic neurons, and hypophyseal neurons.
The analysis of a critical number of sensory stimuli or facts (the pattern) by physiological processes such as vision (PATTERN RECOGNITION, VISUAL), touch, or hearing.
Common name for the largest birds in the order PASSERIFORMES, family Corvidae. These omnivorous black birds comprise most of the species in the genus Corvus, along with ravens and jackdaws (which are often also referred to as crows).
A nonapeptide that contains the ring of OXYTOCIN and the side chain of ARG-VASOPRESSIN with the latter determining the specific recognition of hormone receptors. Vasotocin is the non-mammalian vasopressin-like hormone or antidiuretic hormone regulating water and salt metabolism.

Evaluation of pulmonary volumetric morphometry at the light and electron microscopy level in several species of passerine birds. (1/1015)

The lungs of 3 small passerine species, having similar body mass but different diurnal activity patterns, were analysed morphometrically to assess the relationship between diurnal activity and pulmonary volumetry at the light and electron microscope levels. The percentage volumes of the major lung and exchange tissue components of the 3 species--an aerial insectivore, a foliage gleaner/nectarivore and a ground forager--were strikingly similar, and consistent with literature values for other passerine species. The only significant difference found was exchange tissue plasma volume and pulmonary haematocrit, with the ground-foraging, low activity Malurus splendens having significantly lower values than the other 2 species. This may indicate that cardiovascular parameters are more important determinants of metabolic activity in small passerines than aspects of pulmonary anatomy.  (+info)

Second messenger production in avian medullary nephron segments in response to peptide hormones. (2/1015)

We examined the sites of peptide hormone activation within medullary nephron segments of the house sparrow (Passer domesticus) kidney by measuring rates of hormone-induced generation of cyclic nucleotide second messenger. Thin descending limbs, thick ascending limbs, and collecting ducts had baseline activity of adenylyl cyclase that resulted in cAMP accumulation of 207 +/- 56, 147 +/- 31, and 151 +/- 41 fmol. mm-1. 30 min-1, respectively. In all segments, this activity increased 10- to 20-fold in response to forskolin. Activity of adenylyl cyclase in the thin descending limb was stimulated approximately twofold by parathyroid hormone (PTH) but not by any of the other hormones tested [arginine vasotocin (AVT), glucagon, atrial natriuretic peptide (ANP), or isoproterenol, each at 10(-6) M]. Thick ascending limb was stimulated two- to threefold by both AVT and PTH; however, glucagon and isoproterenol had no effect, and ANP stimulated neither cAMP nor cGMP accumulation. Adenylyl cyclase activity in the collecting duct was stimulated fourfold by AVT but not by the other hormones; likewise, ANP did not stimulate cGMP accumulation in this segment. These data support a tubular action of AVT and PTH in the avian renal medulla.  (+info)

The sexually dimorphic expression of androgen receptors in the song nucleus hyperstriatalis ventrale pars caudale of the zebra finch develops independently of gonadal steroids. (3/1015)

The development of sex differences in brain structure and brain chemistry ("brain sex") of vertebrates is frequently thought to depend entirely on gonadal steroids such as androgens and estrogens, which act on the brain at the genomic level by binding to intracellular transcription factors, the androgen receptors (ARs) and estrogen receptors (ERs). These hormone actions are thought to shift the brain from a monomorphic to a dimorphic phenotype. One prominent such example is the nucleus hyperstriatalis ventrale pars caudale (HVc) of the zebra finch (Poephila guttata), a set of cells in the caudal forebrain involved in the control of singing. In contrast with previous studies using nonspecific cell staining techniques, the size and neuron number of the HVc measured by the distribution of AR mRNA is already sexually dimorphic on posthatching day (P)9. No ARs or ERs are expressed in the HVc before day 9. Slice cultures of the caudal forebrain of P5 animals show that the sexually dimorphic expression of AR mRNA in HVc is independent of the direct action of steroids on this nucleus or any of its immediate presynaptic or postsynaptic partners. Therefore, gonadal steroids do not appear to be directly involved in the initial sex difference in the expression pattern of AR mRNA, size, and neuron number of the HVc. Furthermore, we demonstrate that the initial steroid-independent size and its subsequent steroid-independent growth by extension linearly with the extension of the forebrain explains 60-70% of the masculine development of the HVc. Thus, we suggest that epigenetic factors such as the gonadal steroids modify but cannot overwrite the sex difference in HVc volume determined autonomously in the brain.  (+info)

Seasonal neuroplasticity in the songbird telencephalon: a role for melatonin. (4/1015)

Neuroplasticity in the vocal control system of songbirds is strongly influenced by seasonal fluctuations in circulating testosterone. These seasonally plastic telencephalic structures are implicated in the learning and production of song in songbirds. The role of the indoleamine melatonin in seasonal adaptations in birds has remained unclear. In this experiment, European starlings were castrated to remove the neuromodulating activity of gonadal steroids and were exposed to different photoperiods to induce reproductive states characteristic of different seasonal conditions. Long days increased the volume of the song-control nucleus high vocal center compared with its volume on short days. Exogenous melatonin attenuated the long-day-induced volumetric increase in high vocal center and also decreased the volume of another song-control nucleus, area X. This effect was observed regardless of reproductive state. To our knowledge, this is the first direct evidence of a role for melatonin in functional plasticity within the central nervous system of vertebrates.  (+info)

Phylogeny of Darwin's finches as revealed by mtDNA sequences. (5/1015)

Darwin's finches comprise a group of passerine birds first collected by Charles Darwin during his visit to the Galapagos Archipelago. The group, a textbook example of adaptive radiation (the diversification of a founding population into an array of species differentially adapted to diverse environmental niches), encompasses 14 currently recognized species, of which 13 live on the Galapagos Islands and one on the Cocos Island in the Pacific Ocean. Although Darwin's finches have been studied extensively by morphologists, ecologists, and ethologists, their phylogenetic relationships remain uncertain. Here, sequences of two mtDNA segments, the cytochrome b and the control region, have been used to infer the evolutionary history of the group. The data reveal the Darwin's finches to be a monophyletic group with the warbler finch being the species closest to the founding stock, followed by the vegetarian finch, and then by two sister groups, the ground and the tree finches. The Cocos finch is related to the tree finches of the Galapagos Islands. The traditional classification of ground finches into six species and tree finches into five species is not reflected in the molecular data. In these two groups, ancestral polymorphisms have not, as yet, been sorted out among the cross-hybridizing species.  (+info)

Song-induced phosphorylation of cAMP response element-binding protein in the songbird brain. (6/1015)

We have investigated the participation of cAMP response element-binding protein (CREB) in the response of the songbird brain to a natural auditory stimulus, a conspecific song. The cells in the two song control nuclei, the higher vocal center (HVC) and area X of zebra finches (Taeniopygia guttata), were intensely stained with an anti-CREB monoclonal antibody. Double-labeling studies showed that CREB immunoreactivity was detected only in area X-projecting neurons in the HVC. The cloned CREB cDNA from zebra finches (zCREB) is highly homologous to mammalian delta CREB. Phosphorylation of zCREB at Ser119 in area X-projecting HVC neurons was induced by hearing tape-recorded conspecific songs of zebra finches, but not by birdsongs of another species or white noise. These results raise the possibility that zCREB plays a crucial role in the sensory process of song learning.  (+info)

Contributions of tutor and bird's own song experience to neural selectivity in the songbird anterior forebrain. (7/1015)

Auditory neurons of the anterior forebrain (AF) of zebra finches become selective for song during song learning. In adults, these neurons respond more to the bird's own song (BOS) than to the songs of other zebra finches (conspecifics) or BOS played in reverse. In contrast, AF neurons from young birds (30 d) respond equally well to all song stimuli. AF selectivity develops rapidly during song learning, appearing in 60-d-old birds. At this age, many neurons also respond equally well to BOS and tutor song. These similar neural responses to BOS and tutor song might reflect contributions from both song experiences to selectivity, because auditory experiences of both BOS and tutor song are essential for normal song learning. Alternatively, they may simply result from acoustic similarities between BOS and tutor song. Understanding which experience shapes selectivity could elucidate the function of song-selective AF neurons. To minimize acoustic similarity between BOS and tutor song, we induced juvenile birds to produce abnormal song by denervating the syrinx, the avian vocal organ, before song onset. We recorded single neurons extracellularly in the AF at 60 d, after birds had had substantial experience of both the abnormal BOS (tsBOS) and tutor song. Some neurons preferred the unique tsBOS over the tutor song, clearly indicating a role for BOS experience in shaping neural selectivity. In addition, a sizable proportion of neurons responded equally well to tsBOS and tutor song, despite their acoustic dissimilarity. These neurons were not simply immature, because they were selective for tsBOS and tutor song relative to conspecific and reverse song. Furthermore, their similar responses to tsBOS and tutor song could not be attributed to residual acoustic similarities between the two stimuli, as measured by several song analyses. The neural sensitivity to two very different songs suggests that single AF neurons may be shaped by both BOS and tutor song experience.  (+info)

Gradual emergence of song selectivity in sensorimotor structures of the male zebra finch song system. (8/1015)

Birdsong is a model system for understanding how motor and sensory information interact to coordinate behavior. Neurons in one potential site of sensorimotor integration, the forebrain nucleus HVc, have premotor activity during singing and auditory activity during playback of the bird's own song. It is not known whether the high degree of selectivity for learned features of song observed during playback arises in HVc or also in structures afferent to HVc. We recorded in anesthetized adult zebra finches from two structures afferent to HVc: either the nucleus interfacialis (NIf) or the L1 subdivision of the field L complex, and simultaneously from a second electrode in HVc. Correlations in the bursting pattern of ongoing activity of HVc and NIf recordings were observed; these helped to localize the first electrode to NIf recording sites. Most NIf neurons exhibited song-selective responses, but as a population, they were less selective than were HVc neurons. Most L1 neurons were not song-selective. NIf neurons have also been reported to have premotor activity during singing; thus, NIf is another potential site of auditory-motor interactions in the song system. Evidence gathered to date suggests that those brain areas in the passerine forebrain that are recruited during song production also display the most selective learned auditory responses.  (+info)

Stable carbon- (delta(13)C), nitrogen- (delta(15)N) and hydrogen (delta D) isotope profiles in feathers of migratory Great Reed Warblers Acrocephalus arundinaceus recaptured for 2 or more years in 6 successive years were examined to test whether the isotope profiles of individual warblers appeared to be consistent between years. Similar isotopic signatures in successive years suggested that individual birds tended to return and grow their feathers in Afro-tropical wintering habitats that generate similar delta(13)C, delta(15)N and delta D signatures. Previous studies have shown that Great Reed Warblers exhibit strong natal and breeding philopatry, with most of the surviving birds returning to the breeding site. The present study of feather delta(13)C, delta(15)N and delta D isotopic values demonstrate the year-to-year fidelity might also include the African moulting sites in this migratory species ...
The sex of 746 great reed warbler fledglings (from 175 broods) was determined by the use of single primer polymerase-chain reaction. The reliability of the technique was confirmed as 104 of the fledglings were subsequently recorded as adults of known sex. The overall sex ratio did not differ from unity. Variation in sex ratios between broods was larger than expected from a binomial distribution. Female identity explained some of the variation of brood sex ratio indicating that certain females consistently produced sex ratios that departed from the average value in the population. The theory of sex allocation predicts that parents should adjust the sex ratio of their brood to the relative value of sons and daughters and this may vary in relation to the quality of the parents or to the time of breeding. In the great reed warbler, the proportion of sons was not related to time of breeding, or to any of five female variables. Of five male variables, males with early arrival date tended to produce ...
TY - JOUR. T1 - Host intra-clutch variation, cuckoo egg matching and egg rejection by great reed warblers. AU - Cherry, Michael I.. AU - Bennett, Andrew T D. AU - Moskát, C.. PY - 2007/6. Y1 - 2007/6. N2 - Prevailing theory predicts that lower levels of intra-clutch variation in host eggs facilitate the detection of brood parasitism. We assessed egg matching using both human vision and UV-VIS spectrophotometry and then followed the nest fate of great reed warblers naturally parasitised by European cuckoos. Rejection was predicted by the following three variables: matching between cuckoo and host eggs on the main chromatic variable defined by principal components analysis of the egg spectra (which has a strong loading in the UV); the number of host eggs in the nest; and human estimates of intra-clutch variation. The first variable is not correlated to human estimates of matching, which do not predict rejection. In line with another recent study, rejection rates were predicted by higher levels of ...
Slate-colored Dark-eyed Junco design in dark-eyed junco with Dark-eyed Junco on 9 products. Dark-eyed Juncos are small birds of the sparrow family. They are typically dark in the...
The class I genes of the major histocompatibility complex (Mhc) are here investigated for the first time in a passerine bird. The great reed warbler is a rare species in Sweden with a few semi-isolated populations. Yet, we found extensive Mhc class I variation in the study population. The variable e …
Atlas pied flycatcher or Atlas flycatcher (Ficedula speculigera) is a bird in an Old World flycatcher family, one of the four species of Western Palearctic black-and-white flycatchers; it is endemic as a breeding species to North-west Africa. It was formerly regarded as a race of European pied flycatcher, but Sætre et al. (2001) recommended that it is regarded as a species in its own right. Identification is covered in Etherington and Small (2003) and van den Berg et al. (2006). Etherington, Graham and Brian Small (2003) Taxonomy and identification of Atlas Flycatcher - a potential British vagrant Birding World 16:252-256 Sætre, G-P., T. Borge and T. Moum (2001) A new bird species? The taxonomic status of the Atlas Flycatcher assessed from DNA sequence analysis. Ibis 143:494-497 van den Berg, Arnoud and the Sound Approach (2006) Phenology and identification of Atlas and Iberian Pied Flycatchers Dutch Birding 28(1):1-6 Ficedula speculigera. Avibase ...
Dark-eyed Juncos are neat, even flashy little sparrows that flit about forest floors of the western mountains and Canada, then flood the rest of North America for winter. Theyre easy to recognize by their crisp (though extremely variable) markings and the bright white tail feathers they habitually flash in flight. One of the most abundant forest birds of North America, youll see juncos on woodland walks as well as in flocks at your feeders or on the ground beneath them.
behaviour and the neural systems controlling behaviour. Songbirds, along with humans, are one of only six animal groups (including bats, parrots, hummingbirds, and cetaceous whales and dolphins) that are known to exhibit vocal learning. Furthermore, songbirds possess a highly-evolved network of interconnected brain regions controlling vocal learning, vocal perception and vocal production. As such, songbirds allow researchers a unique opportunity to directly study vocal communication at the interface between brain and behaviour. The SNL studies the cognitive, neurobiological and behavioural substrates underlying songbirds highly evolved and specialized suite of communication behaviours. Current research focuses on vocal communication in one particular group of songbirds, the chickadees (e.g., Black-capped, Boreal, Carolina, Chestnut-backed, and Mountain chickadees).. Research in the SNL is currently aimed at understanding the cognitive, perceptual, evolutionary, developmental, and neural bases ...
Dark-eyed Junco: Medium-sized sparrow with considerable geographic color variation, although all exhibit a pink bill, dark eyes, white belly, and dark-centered tail with white outer feathers. Gray-headed form has gray head, rump, breast, and sides, and rust-brown back. Slate-colored form is slate-gray overall with darker head. Oregon form has black hood, chestnut-brown back and buff-brown flanks. White-winged form is blue-gray overall and shows two white wing bars. Pink-sided form is blue-gray with darker wings and pink-gray flanks. Female of each form resembles male but is usually paler. Juveniles of all forms are heavily streaked brown with darker heads, white bellies, and white outer tail feathers.
Observed this leucitic Dark-eyed Junco most recently during my last count. Merlin ID identified it correctly but I had to research further to be sure. Being new to identifying the birds Im seeing I had no idea. Never seen one like this before.. ...
By Maxine Tinney As winter approaches in central Arizona, the common Dark-eyed Junco sometimes congregate along with other sparrows and warblers in coniferous forests. They may be seen pecking in leaf litter or searching for food in the underbrush. In backyards with feeders, theyre hopping and foraging on the ground for millet, sunflower seeds, and corn. A sudden movement or flash of noise may send the flock flying to nearby trees flashing their bright white tail feathers. In general, the Dark-eyed Juncos have a pale pinkish bill, gray/black heads, gray or brown backs and wings, gray/brown/pinkish flanks, and gray necks and breasts with a white belly. The Dark-eyed Junco species (Junco hyemalis) of the sparrow family in Yavapai County may consist of at least five recognizable populations or subspecies based on different sizes and colorations, genetics of the birds, how the bird communicates, and the frequency of hybridization. The smallest subspecies is the Oregon with dull gray or black head, ...
Depending on the exact population, the house wrens clutch is usually between two and eight red-blotched cream-white eggs,[13] weighing about 1.4 g (0.049 oz) each and measuring c.17 and 13.4 mm (0.67 and 0.53 in) at the widest points. Only the female incubates these, for around 12-19 days,[13] and she will every now and then leave the nest for various reasons. While she is on the nest, the male provisions her with food. The young, which like all passerines hatch almost naked and helpless, take another 15-19 days or so to fledge[14]. They are being fed by both parents, and need plenty of food given their tiny size (see also Bergmanns Rule). As the young near fledging, the parents spend much of their time procuring food for them. Brood loss due to predation was found to be light in the Southern Andean Yungas, with predation of nestling young being almost insignificant.[15] Known predators of house wrens at the nest include cats, rats, opossums, woodpeckers, foxes, raccoons, squirrels, snakes and ...
Estrogen, when present in early embryonic development, regulates sexual differentiation in the avian nestling and adult. In this study, I developed a procedure to extract and quantify levels (by radioimmunoassay) of the estrogen, 17[beta]-estradiol, in house wren (Troglodytes aedon) egg yolk. Levels of 17[beta]-estradiol found in one clutch of eggs increased with the order of laying, indicating female house wrens may be capable of regulating the levels of 17[beta]-estradiol received by the offspring. Since the attraction of mates is often aided by the display of sex differences, maternal control of 17[beta]-estradiol levels in the embryo may influence the future reproductive success of her offspring.
Eggs. More than 100 host species have been recorded: Meadow Pipit, Dunnock and Eurasian Reed Warbler are the most common hosts in northern Europe; Garden Warbler, Meadow Pipit, Pied Wagtail and European Robin in central Europe; Brambling and Common Redstart in Finland; and Great Reed Warbler in Hungary.[3]. Female Common Cuckoos are divided into gentes - populations favouring a particular host species nest and laying eggs which match those of that species in colour and pattern. The colour pattern is inherited from the female only, suggesting that it is carried on the sex-determining W chromosome (females are WZ, males ZZ). Male Common Cuckoos breed with females without regard to gens. This results in gene flow between the gentes and maintains a common gene pool for the species (except for the genes on the W chromosome). It is notable that most non-parasitic cuckoo species lay white eggs, like most non-passerines other than ground-nesters.. As the Common Cuckoo evolves to lay eggs which are ...
Were all aware these days of the many ways that the genders are treated differently amongst humans. Similarly, I have noticed lately that bird photographers also tend to treat the genders differently. Google Red-winged Blackbird and take a look at the images. Nineteen of the first twenty photos that come up are of male Red-winged Blackbirds. This is much the same with other birds; the brightly colored and patterned males are much more likely to be photographed and identified than the less ostentatious females. It is possible to ascribe this imbalance to a natural preference for bright colors and sharp contrasts but this begs the question as to why that should be the case. Anyway, to redress the balance a little here are two photos of female birds: above is a female Red-winged Blackbird and below is a female Northern Flicker ...
House Wren: Small wren with brown head, nape, and back showing very fine dark brown bars, faint white eyebrows, and gray-brown underparts with fine brown bars on flanks and below tail. Wings and tail are brown with darker bars. Brown-throated Wrens have a bolder eyebrow and a darker throat. Northern birds are grayer overall with baring on the flanks. Southern birds have light brown upperparts and buff underparts. Bill is thin and slightly decurved.
Dutoit L, Mugal CF, Bolívar P, Wang M, Nadachowska-Brzyska K, Smeds L, Yazdi HP, Gustafsson L, Ellegren H Mol Ecol 27 (18) 3572-3581 [2018-09-00; online 2018-09-04] Bioinformatics Compute and Storage [Service] NGI Uppsala (SNP&SEQ Technology Platform) [Service] National Genomics Infrastructure [Service] QC bibliography QC xrefs PubMed 30055065. DOI 10.1111/mec.14789. Crossref 10.1111/mec.14789. BioProject: PRJEB2984 Whole genome sequencing and de novo assembly of the collared flycatcher. ...
Metaller är grundämnen som inte kan bildas eller förstöras av människan. De förekommer i mineraler i berggrunden och finns överallt på jorden. Människans användning av metaller har dock medfört att de återfinns i högre halter i miljön än de annars skulle gjort.. Trots att metallerna kan spridas och transporteras långa sträckor med luftmassorna, är det främst kring källorna, såsom metallindustrier, man kan hitta metaller i tillräckligt höga halter för att orsaka skada på växter och djur. I denna avhandling presenteras undersökningar av hur svartvit flugsnappare (Ficedula hypoleuca) påverkas kring två metallindustrier i norra Sverige. Det ena är en numera nedlagd blygruva med anrikningsverk i Laisvall, där vi studerade populationer av svartvit flugsnappare före och efter att industrin stängdes. Det andra är smältverket Rönnskärsverken, utanför Skelleftehamn, som varit i drift sedan 1930-talet. I föroreningsgradienten från smältverket studerades effekter av ...
by Vetscite. Adult songbirds modify their vocalizations when singing to juveniles in the same way that humans alter their speech when talking to babies. The resulting brain activity in young birds could shed light on speech learning and certain developmental disorders in humans, according to a study by McGill University researchers.. Lead author Jon Sakata, a professor of neurobiology at McGill, says that songbirds learn vocalizations like humans learn speech. Songbirds first listen to and memorize the sound of adult songs and then undergo a period of vocal practice-in essence, babbling-to master the production of song.. Researchers have been studying song learning in birds for some time. But the degree to which social interaction with adult birds contributes to that learning has been unclear. Thats because, unlike this current work, past studies didnt control for the time exposed to song and the presence of other birds.. In this study, published in the journal Proceedings of the National ...
2.4.1.251 GlcA-beta-(1->2)-D-Man-alpha-(1->3)-D-Glc-beta-(1->4)-D-Glc-alpha-1-diphospho-ditrans,octacis-undecaprenol 4-beta-mannosyltransferase ...
In this thesis, different genetic tools are used to investigate pre- and postzygotic barriers to gene exchange and their role in speciation in the pied flycatcher (Ficedula hypoleuca) and the collared flycatcher (F. albicollis). This species complex consists of four genetically distinct clades that apparently diverged in allopatry (I). Sequencing of introns from autosomal and Z-linked genes from the two species reveals signs of selection on the Z-chromosome. Sexual selection acting on Z-linked genes might explain this pattern (II). By using large-scale genotyping of single nucleotide polymorphisms (SNPs), introgression is observed at autosomal- but not Z-linked loci, mostly from the pied- to the collared flycatcher. Male plumage characters and genes involved in hybrid fitness are largely mapped to the Z-chromosome (III). By studying mate choice of female hybrids I show that there is a link between female preferences and the Z chromosome (IV). The rate of introgression in island versus clinal ...
Hybrid wood warblers, Dendroica striata x Dendroica castanea (Aves: Fringillidae: tribe Parulini) and the diagnostic predictability of avian hybrid ...
From whence the House Wren comes, or to what parts it retires during winter, is more than I have been able to ascertain. Although it is extremely abundant in the States of Pennsylvania, New Jersey, Virginia, and Maryland, from the middle of April until the beginning of October, I have never been able to trace its motions, nor do I know of any naturalist in our own country, or indeed in any other, who has been more fortunate.
Chemical signaling is an underappreciated means of communication among birds, as may be the potential contributions of symbiotic microbes to animal chemical communication in general. The dark-eyed junco (Junco hyemalis) produces and detects volatile compounds that may be important in reproductive behavior. These compounds are found in preen oil secreted by the uropygial gland, and this gland supports diverse bacterial communities including genera known to produce some of these volatile compounds. We investigated the relative contributions of shared environments and genetic relatedness in shaping juncos symbiotic bacterial communities, and investigated whether these bacterial communities underlie juncos chemical signaling behavior. We sampled parents and nestlings at 9 junco nests during one breeding season at Mountain Lake Biological Station in Virginia, USA. From each individual, we collected swabs of the uropygial gland and the cloaca, preen oil, and a small blood sample for paternity testing. We
by Vetscite. Scientists from the University of British Columbia have shown that there is a genetic basis to the migratory routes flown by songbirds, and have narrowed in on a relatively small cluster of genes that may govern the behaviour.. Its amazing that the routes and timing of such complex behaviour could be genetically determined and associated with a very small portion of the genome, said researcher Kira Delmore, lead author of the paper published in Current Biology.. Whats even more amazing is that differences in this behaviour could be helping to maintain the huge diversity of songbirds we see in the natural world.. Seasonal migration is one of the most remarkable biological phenomena in the world, with routes spanning thousands of kilometres and involving billions of animals. Songbirds travel up to 15,000 kilometres, despite often weighing under ten grams. They undertake these journeys alone at night and return to the same locations year after year.. Delmore and her colleagues ...
Blackbird Technologies… more Greylock VCs see good M&A market for strong startups, less acquihires Presenting Fieldhaven, the Bay Areas Most Exceptional Estate Blackbird Technologies co-founder Nikhil Raghavan is joining Etsy after it bought his… more Artificial intelligence startup Blackbird Technologies was acquired by Etsy on Monday for an undisclosed sum. Blackbird has less than a dozen staffers who will join Etsy as part of the acquisition, including co-founders Nikhil Raghavan (CEO) and Manju Rajashekhar (CTO). The Menlo Park-based company had not publicly disclosed any fundraising rounds. Blackbird Technologies co-founder Nikhil Raghavan is joining Etsy after it bought his… more The startup developed algorithms for natural language processing, deep learning-based image recognition and analytics that can be used by companies for personalized product searches. Raghavan and Rajashekhar worked on similar technologies ...
Researchers recently discovered some differences between the DNA of migratory and resident birds that can provide insight into the stresses that migratory birds face from their journey.. As part of a study published in The Auk: Ornithological Advances, lead author Carolyn Bauer and her colleagues examined telomeres in songbirds. Telomeres are the protective cap at the ends of the chromosome that stop the cells from aging and dying. When a cell replicates its DNA, a little bit of the telomere is shortened due to oxidative stress - the increased production of free radicals such as peroxides or other chemicals. This shortening of telomeres cannot be repaired, says Bauer, a postdoctoral scholar at North Dakota State University.. Bauer, who has had a longtime interest in telomeres and stress physiology, wanted to determine the differences in telomeres of migratory and resident dark-eyed juncos (Junco hyemalis) in western Virginia. Birds are actually pretty easy to study telomeres in, she said, ...
This little guy showed up last winter and has been a welcome and regular visitor to our feeder… we did not know what he was at first, but a little investigating revealed him to have a genetic mutation…. ...
Songbirds appear to have an extra chromosome in cells involved in sexual reproduction. The extra DNA could help explain why there are so many songbird species
Acta Ornithologica, published by the Museum and Institute of Zoology at the Polish Academy of Sciences, covers all fields of ornithology.
Alaudidae: Eremophila alpestris (Horned Lark) [seeds comprise 0.5-2% of the diet in eastern USA] MZN1951; Calcaridae: Calcarius lapponicus (Lapland Longspur) [seeds comprise 0.5-2% of the diet in NE USA & Northern Prairies] MZN1951, Calcarius pictus (Smiths Longspur) [seeds comprise 25-50% of the diet in Illinois during spring] MZN1951, Plectrophenax nivalis (Snow Bunting) [seeds comprise 2-5% of the diet in NE USA during winter] MZN1951; Emberizidae: Junco hyemalis (Dark-eyed Junco) [seeds comprise 5-10% of the diet in NE USA during winter & spring, seeds comprise 10-25% of the diet in the Prairie region during fall & winter] MZN1951; Passerculus sandwichensis (Savannah Sparrow) [seeds comprise 2-5% of the diet in the Southern Prairies during winter] MZN1951, Spizella pusilla (Field Sparrow) [seeds comprise 0.5-2% of the diet in NE USA, seeds comprise 5-10% of the diet in the Prairie region during winter & spring] MZN1951, Spizelloides arborea (American Tree Sparrow) [seeds comprise 2-5% of ...
Many morphological and life-history traits show phenotypic plasticity that can be described by reaction norms, but few studies have attempted individual-level analyses of reaction norms in the wild. We analyzed variation in individual reaction norms between laying date and three climatic variables (local temperature, local rainfall, and North Atlantic Oscillation) of 1126 female collared flycatchers (Ficedula albicollis) with a restricted maximum likehood linear mixed model approach using random-effect best linear unbiased predictor estimates for the elevation (i.e., expected laying date in the average environment) and slope (i.e., adjustment in laying date as a function of environment) of females reaction norms. Variation in laying date was best explained by local temperature, and individual females differed in both the elevation and the slope of their laying date-temperature reaction norms. As revealed by animal model analyses, there was weak evidence for additive genetic variance of elevation (h2 +/
Songbird Dulcimers - Welcome to the Songbird Dulcimers Blog! - Wood is constantly in motion.  The technical term is hygroscopic, meaning it will absorb or rel
For both pied flycatchers and blackcaps, our data obtained under the stationary sky can best be explained by Hypothesis 3. Birds use the stars as a compass only, and this compass most likely is based on geometrical recognition of star patterns learned during ontogeny, and therefore seems independent of celestial rotation and time later in life.. The pied flycatchers clearly oriented in more or less the normal migratory direction all night, even though the stars were stationary. No clear change in direction towards the end of the night, as would be expected if they had been performing true star navigation, was observed (Hypothesis 1a-c). In other words, they did not seem to perceive any longitudinal displacement during the night. Also, there was no gradual change in orientation consistent with a time-compensated star compass (Hypothesis 2).. The data on the blackcaps are less clearcut, probably because of the relatively low sample size (N=7). The data appear to show a turn towards the west in the ...
Identification record : Sulphur-bellied Warbler (Phylloscopus griseolus) is a bird which belongs to the family of Phylloscopidés and the order of Passeriformes.
Definition of Rock wren. What does Rock wren mean? Meaning of Rock wren. Rock wren synonyms, pronunciation, spelling and more from Free Dictionary.
Background. The genetic benefits of mate choice are limited by the degree to which male and female fitness are genetically correlated. If the intersexual correlation for fitness is small or negative, choosing a highly fit mate does not necessarily result in high fitness offspring.. Methodology/Principal Finding. Using an animal-model approach on data from a pedigreed population of over 7,000 collared flycatchers (Ficedula albicollis), we estimate the intersexual genetic correlation in Lifetime Reproductive Success (LRS) in a natural population to be negative in sign (−0.85±0.6). Simulations show this estimate to be robust in sign to the effects of extra-pair parentage. The genetic benefits in this population are further limited by a low level of genetic variation for fitness in males.. Conclusions/Significance. The potential for indirect sexual selection is nullified by sexual antagonistic fitness effects in this natural population. Our findings and the scarce evidence from other studies ...
Den här ekorren har räknat ut att den kan få något gott hos min mormor. This squirrel has figured out that it can get something good to ea ...
The nutritional requirements for each of the avian species are very diversified. Age, sex, size, activity and reproduction functions also contribute to a variance in nutritional requirements. While a healthy, adult bird can thrive on a balanced maintenance diet, growth, healing, breeding, nesting and molting all require additional nutrients. Small birds need more food for energy than larger birds do, and reproducing females require more nutrients than males do. All natural and captive diets listed in this document are based primarily on the Spring-Summer diet of these birds. During these seasons, almost all avian diets contain a substantially higher percentage of insects (nearly 100% protein) than the remainder of the year. Nearly all baby songbirds are fed a primarily insect diet. ...
The first notes of bird song signal the arrival of spring as well as the beginning of mate attraction season, and for many songbird species males with the most elaborate songs do best when it comes to attracting females. But why do many migratory songbirds sing during the winter, when they are thousands of kilometers away from their breeding grounds and the prospect of attracting a mate? This was the long-unanswered question tackled by Marjorie Sorensen, Susanne Jenni-Eiermann, and Claire Spottiswoode.
8. Because the winter wrens, the Bewicks wrens are speaking. Shh. Listen.. he investigates the pig-sty; then explores the garden fence, and finally mounts to the roof and pours forth one of the sweetest songs that ever was heard.. Ill stop talking, Ill stop asking question. Go outside you lazy creature of the earth and listen. Go find the wren-the wren is everywhere. Go find a wren to give your year something other than our great military delivered justice or profanity sparks furor or woman in vegetative state, apparently assaulted, gives birth to baby boy.. Go outside. Find that one bird and her buzzy call. Only that one bird and his deeply complicated song.. Go out, breathing exhaust if you must, wet to the bone and shivering, or hot as all get out if your St. Stephens Day is the end of your summer. Go out there you lazy piece of shit and listen. For the love of god/s/esses/all that is holy. Whether it is sound you hear, or sound you feel, or the sight of the wide open beak to the ...
With bird calls that range from sweet-sounding to demanding, there are many types of songbirds in North America. From the common American robin to the brightly-colored blue jay, learn about their habitats and hear their bird songs.
Anthropogenic climate warming has already affected the population dynamics of numerous species and is predicted to do so also in the future. To predict the effects of climate change, it is important to know whether productivity is linked to temperature, and whether species traits affect responses to climate change. To address these objectives, we analysed monitoring data from the Finnish constant effort site ringing scheme collected in 1987-2013 for 20 common songbird species together with climatic data. Warm spring temperature had a positive linear relationship with productivity across the community of 20 species independent of species traits (realized thermal niche or migration behaviour), suggesting that even the warmest spring temperatures remained below the thermal optimum for reproduction, possibly due to our boreal study area being closer to the cold edge of all study species distributions ...
When researchers captured Eurasian reed warblers along the Russian coast during their spring migrations and flew them 1,000 kilometers east to Zvenigorod, the birds werent fazed; they simply re-oriented themselves toward their original destination. Now, the researchers who first demonstrated the birds navigational skill in the Cell Press journal Current Biology are back with new evidence that reed warblers rely on a geomagnetic map to point them in the right direction.
This evening at LSP was very quiet, with only Red-winged Blackbirds and a couple of Baltimore Orioles violating radio silence with any consistency. Yellow Warblers, maybe five or six, were the busiest warblers, followed by Yellow-rumped. These were joined by pairs of Black-and-white and Common Yellowthroat. A single Northern Parula added a bit of spice, allowing nice views from four feet as he picked through some mulberry on the landward edge of the Interpretive Center woods before moving off into the floppy, concealing leaves of a cottonwood ...
Learn how to figure a wren and chickadee box. When youre make to build axerophthol birdhouse unrivalled of the most important considerations you must make is the birdhouse hole bootleg Capped Chickadee 1 unity 8. Birdhouse plans for Chickadees Nuthatches bird house plans for a chickadee Titmice and fluffy Woodpeckers. my company.. read . Nesting Sites Chickadees are dental caries nesting birds and will easily use wench houses of the proper dimensions the favorite home size for chickadees is eight. The 1 I 8 inch hole size is adapted to the of necessity of house Bewick and Carolina wrens Build a Bird The lightlessness capped Chickadee is amp passably tame and common backyard razzing through with. When building raspberry houses its important to screw what types of birds youll be of the types of birds that use bird houses are Bluebirds Wrens Chickadees and.. Much of North America much found Hoosier bike rack plans free State small flocks foraging through woodlands. Robins need less than half an ...
Krzysztof Blachowiak, IBC1014506. Photo of Red-winged Lark Mirafra hypermetra at Kidepo Valley National Park, Uganda. Accessible at hbw.com/ibc/1014506 ...
Background Chicks of virulent brood parasitic birds eliminate their nestmates and avoid costly competition for foster parental care. Yet, efforts to evict nest contents by the blind and naked common cuckoo Cuculus canorus hatchling are counterintuitive as both adult parasites and large older cuckoo chicks appear to be better suited to tossing the eggs and young of the foster parents. Methodology/Principal Findings Here we show experimentally that egg tossing imposed a recoverable growth cost of mass gain in common cuckoo chicks during the nestling period in nests of great reed warbler Acrocephalus arundinaceus hosts. Growth rates of skeletal traits and morphological variables involved in the solicitation of foster parental care remained similar between evictor and non-evictor chicks throughout development. We also detected no increase in predation rates for evicting nests, suggesting that egg tossing behavior by common cuckoo hatchlings does not increase the conspicuousness of nests. Conclusion The
Begging signals given by nestling birds may advertise their condition or quality and parents may respond by allocating their resources in relation to begging intensity. In order for such signals to be honest, they must be costly to produce. The aim of this project was to investigate the role of nestling endogenous testosterone (T) as a potential mechanism to control begging signals in pied flycatchers, Ficedula hypoleuca. Androgen levels were analysed from invasive and non-invasive (faecal) samples using T radioimmunoassay. In the laboratory, nestling begging behaviour was measured as: 1) the duration of begging displays and 2) the maximum height of begging stretches. It was found that individual nestlings begging most intensively had the highest circulating levels of T immediately after testing. This relationship was tested experimentally by dosing nestlings with oral doses of T and assessing the effects on nestling begging signals. The results showed that the duration of begging displays by ...
BackgroundAvian keratin disorder (AKD) is an epizootic of debilitating beak deformities, first documented in black-capped chickadees (Poecile atricapillus) in Alaska during the late 1990s. Similar deformities have now been recorded in dozens of species of birds across multiple continents. Despite this, the etiology of AKD has remained elusive, making it difficult to assess the impacts of this disease on wild populations. We previously identified an association between infection with a novel picornavirus, Poecivirus, and AKD in a small cohort of black-capped chickadees.MethodsTo test if the association between Poecivirus and AKD holds in a larger study population, we used targeted PCR followed by Sanger sequencing to screen 124 symptomatic and asymptomatic black-capped chickadees for Poecivirus infection. We further compared the efficacy of multiple non-terminal field sampling methods (buccal swabs, cloacal swabs, fecal samples, and blood samples) for Poecivirus screening. Finally, we used both in situ
The rapid geographic spread of West Nile virus (family Flaviviridae, genus Flavivirus, WNV) across the United States has stimulated interest in comparative host infection studies to delineate competent avian hosts critical for viral amplification. We compared the host competence of four taxonomically related blackbird species (Icteridae) after experimental infection with WNV and with two endemic, mosquito-borne encephalitis viruses, western equine encephalomyelitis virus (family Togaviridae, genus Alphavirus, WEEV), and St, Louis encephalitis virus (family Flaviviridae, genus Flavivirus, SLEV). We predicted differences in disease resistance among the blackbird species based on differences in life history, because they differ in geographic range and life history traits that include mating and breeding systems. Differences were observed among the response of these hosts to all three viruses, Red-winged Blackbirds were more susceptible to SLEV than Brewers Blackbirds, whereas Brewers Blackbirds were more
Chickadees are one of the easiest birds to attract to feeders, for suet, sunflower, and peanuts. They dont mind using tiny hanging feeders that swing in the wind, and also readily visit window feeders. Planting willow, alder, and birch trees provides future nesting habitat for chickadees. Find out more about what this bird likes to eat and what feeder is best by using the Project FeederWatch Common Feeder Birds bird list.. Feeders and nest boxes are often used by chickadees; consider putting up a nest box to attract a breeding pair. Make sure you put it up well before breeding season. Attach a guard to keep predators from raiding eggs and young. Black-capped Chickadees are especially attracted to a box when it is filled with sawdust or wood shavings. To keep wrens out of boxes you want chickadees to nest in, place nest boxes at least 60 feet into a wooded area. The compass orientation of the entrance hole probably does not matter at all, but chickadees do seem to prefer an unobstructed path to ...
article{7271b760-00d4-4577-98c6-60c0b9795bca, abstract = {We studied the phylogeny of avian haemosporidian parasites, Haemoproteus and Plasmodium, in a number of African resident and European migratory songbird species sampled during spring and autumn in northern Nigeria. The phylogeny of the parasites was constructed through sequencing part of their mitochondrial cytochrome b gene. We found eight parasite lineages, five Haemoproteus and three Plasmodium, infecting multiple host species. Thus, 44% of the 18 haemospiridian lineages found in this study were detected in more than one host species, indicating that host sharing is a more common feature than previously thought. Furthermore, one of the Plasmodium lineages infected species from different host families, Sylviidae and Ploceidae, expressing exceptionally large host range. We mapped transmission events, e.g. the occurrence of the parasite lineages in resident bird species in Europe or Africa, onto a phylogenetic tree. This yielded three ...
The decline of long distance migratory songbirds has been linked to an increasing mismatch between spring arrival date and timing of food availability caused by climate change. It is unclear to what extent individuals can adjust migration timing or en route rate in response to annual variation in temperature at breeding sites. We tracked the ca. 7300 km spring migration of 52 purple martins Progne subis from the Amazon basin to two breeding sites in eastern North America. Spring 2012 was the warmest on record in eastern North America, but contrary to predictions, this did not result in earlier departure, faster migration, or earlier arrival at breeding areas compared with earlier years. Temperatures and rainfall in the Amazon basin at the time of departure were not higher in 2012, and conditions along migration routes did not give consistent signals of a warmer spring at the breeding site. Once in North America, individuals likely had limited opportunity to speed up their migration because this final
Ficedula parva (es); Red-breasted Flycatcher (en); Burung Sambar Api Bukit (ms); Gwybesser bron gough (kw); червеногуша мухоловка (bg); Ficedula parva (ro); 紅喉姬鶲 (zh-hk); muchárik malý (sk); Мухоловка мала (uk); 紅喉姬鶲 (zh-hant); 红喉姬鹟 (zh-cn); গলমণিকা নাচনী (as); Malgranda muŝkaptulo (eo); Црвеногушесто муварче (mk); Skybbyltagh cleeau yiarg (gv); লালগলা চুটকি (bn); Gobemouche nain (fr); Пĕчĕк шăна кайăкĕ (cv); Ficedula parva (vi); mazais mušķērājs (lv); Dǫ́ʼiiyiyiitsahí yázhí bizééʼ halchíʼígíí (nv); 红喉姬鹟 (zh-sg); Хурган намнаа (mn); dvergflugesnappar (nn); dvergfluesnapper (nb); Red-breasted Flycatcher (en); خاطف الذباب أحمر الصدر (ar); Flouperig jave ruz (br); kis légykapó (hu); Ficedula parva (eu); Ficedula parva (ast); papamosques menut (ca); Ваҡ себен турғайы (ba); Zwergschnäpper ...
Of the skeletal muscles and heart masses examined in this study, only heart mass increased significantly with cold acclimation, and photoperiod did not significantly influence any of the muscle masses. Similar increases in both Ṁsum and heart mass in winter relative to summer for species wintering in cold climates (Swanson, 2010; Liknes and Swanson, 2011a) suggest that winter increments of heart mass are an important and general contributor to metabolic adjustments to cold climates in small birds. Moreover, these data suggest that temperature is the prominent driver of summer to winter variation in exercise organs in birds and that increases in heart mass in response to elevated thermogenic demands help drive winter increases in organismal thermogenic capacity. Heart mass is also positively correlated with maximum exercise metabolic capacity within individual house sparrows, Passer domesticus (Chappell et al., 1999), and red junglefowl, Gallus gallus (Hammond et al., 2000), suggesting that ...
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Phylu: Chordata They also have white feathers visible on both sides of the tail when the bird is perching. Fiscal Flycatchers are attractive and lovely birds to have in ones garden. The Fiscal Flycatcher is endemic (or restricted) to southern Africa; this includes much of South Africa, Lesotho and Swaziland, but also the southern parts of Botswana and Mozambique. Download fiscal flycatcher free images from StockFreeImages. The nest, built by the female alone, is a robust open cup made of a combination of grass stalks, everlastings, slangbos and other plant material. Imitating the calls of other birds is a talent many bird species have but its ecological use is still not clear. Because of their similar appearance, the Fiscal Flycatcher may pretend to be the Common Fiscal. Browse 190 paradise flycatcher stock photos and images available, or search for asian paradise flycatcher to find more great stock photos and pictures. Genus: Melaenornis. The Fiscal Flycatcher gets its English and Afrikaans ...
In the early evening the sun shone but this was only a window of light before the thunderstorms were to start. I never the less headed towards Hellesjøvannet where a Great Reed Warbler (trostesanger) was heard on Monday. On the way I had three Honey Buzzards (vepsevåk) and a Hobby (lerkefalk) over the road and it looks like these late migrants are arriving in force. The Honey Buzzards showed very well although I underestimated how much I needed to adjust the exposure with the closest pictures. One bird was very pale and could almost suggest an Osprey. Looking at the pictures all three appear to be males due to limited barring on the flight feathers and grey heads. At Tuentangen two male Red-backed Shrikes showed distantly but I got my first picture of one for the year ...
In this study, we show for both sexes of the dark-eyed junco that EPO have higher lifetime reproductive success than WPO. To our knowledge, this is the first case in which EPP has been shown to increase lifetime reproductive success of adult offspring in a free-living songbird. In the only similar previous study, the reproductive success of adult female F1 EPO coal tits (Parus ater) did not differ from that of female F1 WPO, and adult male F1 EPO had lower apparent (social) reproductive success than did male F1 WPO. However, extra-pair siring success of F1 males was not measured, and therefore adult genetic reproductive success could not be calculated [16-18].. In many species, there is no obvious benefit to female fitness from mating with an extra-pair male, and some have even hypothesized that extra-pair mating should carry a cost to offspring production or survival [34,35] (although not in juncos [21]; see also [36]). This lack of a cost to females, combined with the observed twofold benefit ...
In parasite-host interactions, there may be many lines of defence. As a NERC-funded Post-doctoral Research Associate with Prof. Nick Davies, we investigated how interactions between individuals can protect the hosts reproductive investment. Cuckoos (Cuculus canorus) use visual signals to mimic the Sparrowhawk, a host predator, but reed warblers (Acrocephalus scirpaceus) use social information from their neighbours to tell the difference. Our results show that this in turn has selected for another cuckoo trick; cuckoo females are polymorphic to beat these host defences. Cuckoos are declining rapidly so we are now investigating how offences and defences vary in our changing world. (4) Plant signals and animal pollination. I am also interested in interactions at the interface of plants and animals. Sandra Anderson (http://www.bioscienceresearch.co.nz/staff/sandra-anderson/ ) (University of Auckland) and I are exploring how plant-pollinator mutualisms change with the introduction and naturalisation ...
One of the abundant benefits to keeping a nature journal, whether a blog or a book, is the opportunity to analyze species counts at your favorite birding spots over time. For example, Ive been in the practice of visiting Van Cortlandt Park in the Bronx every January. The main draw is Rusty Blackbird, a species that winters there and can be located with virtual certainty at the wooden bridge connecting the sports fields to the Golf Course.. I dropped in to spot said blackbirds, a feat more difficult than I expected. In past years, the rusty blackbirds congregated in large, raucous flocks. While I wouldnt describe them as confiding, they were possessed of the kind of swaggering confidence one typically associates with icterids. This year, I only found a couple of birds and they seemed downright skittish. I wonder if they caught wind of that grackle poisoning plot in Texas. What else could sap blackbird braggadocio?. While rusty and red-winged blackbirds were scarce, the other birds Ive come to ...
Starlings have a bad rap. This is perhaps almost entirely due to the Common Starling, a species that is, over much of its range, an introduced pest. If Common Starlings havent been introduced somewhere then Common Mynas almost certainly have, and they are also invasive and destructive little menaces, and by dint of taxonomic association, kin. Even where Common Starlings are not introduced, their homeland of Europe, they are hardly loved. Where the common Blue Tit or European Robin has won many people over, familiarity has bred for the starling nothing but contempt.. This is grossly unfair. Starlings and mynas are adaptable, attractive and clever species. And they have done well for themselves. One must travel to Africa and Asia to marvel at their diversity, and it is in Africa that you may come across one attractive species, the Red-winged Starling. Cape Town in South Africa is a great place to see this species, as like Common Starlings it is happy to associate with people and I was able to get ...
Portions of a songbirds brain that control how it sings have been shown to decay within 24 hours of the animal losing its hearing.. The findings, by researchers at Duke University Medical Center, show that deafness penetrates much more rapidly and deeply into the brain than previously thought. As the size and strength of nerve cell connections visibly changed under a microscope, researchers could even predict which songbirds would have worse songs in coming days.. When hearing was lost, we saw rapid changes in motor areas in that control song, the birds equivalent of speech, said senior author Richard Mooney, Ph.D., professor of neurobiology at Duke. This study provided a laser-like focus on what happens in the living songbird brain, narrowed down to the particular cell type involved.. Like humans, songbirds depend on hearing to learn their mating songs - males that sing poorly dont attract mates, so hearing a song, learning it, and singing correctly are all critical for songbird ...
Four closely related North American bird forms-the eastern Myrtle Warbler (ssp coronata), its western counterpart, Audubons Warbler (ssp group auduboni), the northwest Mexican Black-fronted Warbler (ssp nigrifrons), and the Guatemalan Goldmans Warbler (ssp goldmani)-are periodically lumped as the Yellow-rumped Warbler (Setophaga coronata). This is a mid-sized New World warbler, though it is one of the largest species in the Setophaga genus (formerly Dendroica) which comprises a lions share of the species in the family. In total length, the species can range from 12 to 15 cm (4.7 to 5.9 in) long, with a wingspan of 19 to 24 cm (7.5 to 9.4 in). Body mass can vary from 9.9 to 17.7 g (0.35 to 0.62 oz), though averages between 11 and 14 g (0.39 and 0.49 oz). Among standard measurements, the wing chord is 6.3 to 8.4 cm (2.5 to 3.3 in), the tail is 5 to 6.6 cm (2.0 to 2.6 in), the bill is 0.8 to 1.1 cm (0.31 to 0.43 in) and the tarsus is 1.8 to 2.2 cm (0.71 to 0.87 in).[4] In
Title: Behavioral and physiological responses to simulated territorial intrusions of short- and long-range song in male dark-eyed juncos (Junco hyemalis)  Author: Ferguson, S. M., Reichard, D. G., Rosvall, K. A., Whittaker, D. J., Ketterson, E. D Date: 2013-03-29 ...
The superfamily Certhioidea is distributed on four continents and while comprising relatively few species, includes forms as diverse as creepers, nuthatches, gnatcatchers, and wrens. Previous attempts to infer the phylogeny of this lineage have focused on its higher-level relationships, consequently undersampling the New World wrens. This study reports the first nearly genus-level sampling of certhioids, based on concatenated and species tree analyses of 8520 bases of DNA sequence data from six gene regions. These analyses, while failing to completely resolve basal certhioid relationships, corroborate the monophyly of a diverse New World clade of gnatcatchers, gnatwrens, and wrens, and significantly improve our understanding of wren relationships. The inferred relationships among certhioids and wrens support an Old World origin for these lineages, with dispersal of the New World clade in the mid-Miocene, suggesting expansion and early diversification of the lineage through North America. This ...
The direct route from HVC to RA is the song-production freeway. It conveys the neural signals needed to generate song, and if its disrupted at any time in a birds life, song breaks down. Another more circuitous path from HVC to RA veers off into the anterior forebrain. This pathway is not essential for song production per se, but disruptions to it in juvenile birds cause serious deficits in song learning.. Many researchers have been pecking away at this anterior forebrain pathway (AFP) in search of clues about the mechanisms of song learning. At the conference, several reported on their latest attempts to puzzle out its role in song learning. Although the picture is still somewhat fuzzy, one thing is coming into focus: The circuitry seen in songbirds is not unique.. David Perkel of the University of Washington, Seattle, presented evidence that the AFP is wired up much like the mammalian basal ganglia. This is the network of brain nuclei that goes haywire in Parkinsons disease; it plays a key ...
Two recent papers analysing nuclear DNA sequence data shed new light on the origin of perching birds (Passeriformes) and the structure of their radiation. Both papers find that the New Zealand wrens Acanthisitta fall at the base of the passerine radiation, implying an origin of this clade in Gondwana. Additionally, among oscine passerines (songbirds), both papers fail to support a sister group relationship between the largely Australo-Papuan Corvida and the Afro-Eurasian Passerida, as outlined in Sibley and Ahlquists tapestry. Rather, they converge on a phylogeny in which the Passerida is nested within the Corvida, suggesting an origin of songbirds in eastern Gondwana (Australia plus New Guinea). Finally, a Cretaceous origin of passerine birds is supported by the new data, albeit more on grounds of biogeography than of molecular clocks. The new papers solidify a synthesis of paleontological, phylogenetic and molecular data that has been growing over the past decade, and pave the way for a new ...
Parrots, hummingbirds and songbirds are among the only birds capable of vocal learning. They join humans, bats, elephants, sea lions, whales, dolphins and porpoises as the only animals with this talent. While of course unable to understand language as people do, such animals can memorize long sequences of words. Dogs, for instance, can understand some words spoken by humans when trained, but can only bark to communicate.. Specialized areas in the forebrain give parrots, hummingbirds and songbirds the power to use vocal motor control, which allows them to imitate sound. These areas control cells in the brainstem that manipulate the muscles used to produce sound. Birds that cannot learn vocally lack forebrain structures that include the HVC and RA nuclei, parts of the motor pathway for song, and additional structures called Area X and LMAN, which form the pathway for song learning.. Brain size doesnt really matter - the structure matters more, Jarvis said, adding that there are seven structures ...
A favorite summer pastime is watching the birds at my camper. There are all sorts of birds, but a favorite is the house wren. Last year I made PVC birdhouses and a pair of bluebirds started building in it and then abandoned it. I cleaned it out and a house wren pair is nesting in it. The male sings all day flitting from perch to perch near the nest. Sometimes he sits on the roof and leans over singing to the female inside. How romantic!! Toni and I checked the nest (its easy to do with these birdhouses) and inside are 4 eggs- ...
Opens the Highlight Feature Bar and highlights feature annotations from the FEATURES table of the record. The Highlight Feature Bar can be used to navigate to and highlight other features and provides links to display the highlighted region separately. Links in the FEATURES table will also highlight the corresponding region of the sequence. More... ...
Cuckoos lay their eggs in the nests of superb fairy-wrens, leaving all the hard work of raising the chicks to the wrens. But superb fairy-wrens have a remarkable strategy for recognizing their own chicks. They teach their young a secret password that helps distinguish them from. . . Read More ...
Cuckoos lay their eggs in the nests of superb fairy-wrens, leaving all the hard work of raising the chicks to the wrens. But superb fairy-wrens have a remarkable strategy for recognizing their own chicks. They teach their young a secret password that helps distinguish them from. . . Read More ...
I would think Songbird will have the 3YO filly championship locked up. HOY is probably out of the question, unless she jumps up and wins the BC Classic...though I doubt her connections will consider it, since they decided to run against the ladies once again in the Cotillion. It wouldnt be a good move to come out of her division and try the BC Classic the first time she runs against males. It does look like they are raking in the wins with Songbird, but I believe there is something else behind keeping Songbird in her division. It goes back to the 2008 Kentucky Derby when Songbirds owner ran his 3YO filly against the boys for the first time in the Kentucky Derby...she ran a brilliant 2nd, but ended up breaking down. Her name was Eight Belles and I have to feel the owner has that fateful day in the back of his mind and could be why Songbird hasnt tried the boys to date ...
Artificial light at night has fatal consequences for many nocturnal animals. Millions of insects, for example, die each year through the attraction to street lamps. Migratory birds get distracted by artificial night light, and consequently, go astray and even crash into illuminated high-rise buildings. Although artificial light has not always such fatal impact, it nevertheless can have a substantial influence on an animals life. This problem was investigated by Bart Kempenaers and colleagues from the Max Planck Institute for Ornithology in Seewiesen in five species of songbirds. They studied the effect of street lighting at the outskirts of forest habitat on the song behaviour of male birds. Indeed, males from four out of five species started to sing earlier in the morning than males that lived in locations without artificial night light. This effect was most pronounced for those species known to engage in early dawn singing. For example, male robins living near street lights started singing on ...
As a case study for single-nucleotide polymorphism (SNP) identification in species for which little or no sequence information is available, we investigated several approaches to identifying SNPs in two passerine bird species: pied and collared flycatchers (Ficedula hypoleuca and F. albicollis). All approaches were successful in identifying sequence polymorphism and over 50 candidate SNPs per species were identified from ≈ 9.1 kb of sequence. In addition, 17 sites were identified in which the frequency of alternative bases differed by , 50% between species (termed interspecific SNPs). Interestingly, polymorphism of microsatellite/intron loci in the source species appeared to be a positive predictor of nucleotide diversity in homologous flycatcher sequences. The overall nucleotide diversity of flycatchers was 2.3-2.7 × 10−3, which is ≈ 3-6 times higher than observed in recent studies of human SNPs. Higher nucleotide diversity in the avian genome could be due to the relatively older age of ...
Bluebird: Bluebird, any of the three species of the North American genus Sialia of the chat-thrush group (family Turdidae, order Passeriformes). The eastern bluebird (S. sialis), 14 cm
Until the 1970s, this bird and the Alder Flycatcher masqueraded as just one species under the name Traills Flycatcher. They are essentially identical in looks, but their voices are different. Either kind may be found in thickets of either willow or alder shrubs, but their ranges are largely separate: Alder Flycatchers spend the summer mostly in Canada and Alaska, while Willow Flycatchers nest mostly south of the Canadian border.
Luxton Steps, River Teign, Devon This Robin landed within an arms length of me, so close you can just about see my reflection in its eye.
This release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, including statements regarding the research, development and advancement of bluebird bios immuno-oncology product candidates and CAR T research programs. Any forward-looking statements are based on managements current expectations of future events and are subject to a number of risks and uncertainties that could cause actual results to differ materially and adversely from those set forth in or implied by such forward-looking statements. These risks and uncertainties include, but are not limited to, the risk that bluebird bios immuno-oncology research programs will be unsuccessful and not identify any viable product candidates or will not be safe or effective in clinical trials, the risk of cessation or delay of any of the planned clinical studies and/or our development of our immuno-oncology product candidates, the risk of a delay in the enrollment of patients in the ...
Duke University scientists have parsed the role of the Huntingtons disease gene in an area of the songbirds brain responsible for complex, sequential movements. These findings not only give a clearer view of how the genetic mutation that causes Huntingtons disease alters brain and behavior, it may also offer a new therapeutic target for treatment.
Brood parasitic birds lay their eggs in other birds nests, leaving hosts to raise their offspring. To understand parasite-host coevolutionary arms races, many studies have examined host responses to experimentally introduced eggs. However, attending parents often need to be flushed from their nests to add experimental eggs. If these birds witness parasitism events, they may recognize and reject foreign eggs more readily than parents who did not. We found that, after being flushed, female blackbirds, Turdus merula, remained close to their nests. Flushed females were more likely to eject foreign eggs and did so more quickly than females that were not flushed during experimentation. In contrast, flushing did not predict responses and latency to responses to parasitism by song thrush, Turdus philomelos, which flew farther from their nests and likely did not witness experimental parasitism. When statistically considering flushing, previously published conclusions regarding both species response to
While this is the first study that establishes the Great tit as a part-time bat predator, this is (as usual) not really a new discovery. As Estók et al. (2009) note, bats that appear to have been killed by Great tits have been discovered at or around caves before (in Poland and Sweden). Given the remarkable opportunism of this flexible species we should expect it to take advantage of new food sources. Murderous tendencies!. Though mostly feeding on insects and seeds (in the winter, 90% of the northern European Great tit diet consists of plant material*), the Great tit is fairly powerful and formidable for its size, and can use its bill to break into hazelnuts and acorns. Its also an accomplished raider of caches created by other passerines (in particular those of the smaller Marsh tit Poecile palustris and Coal tit Periparus ater**; unlike these species, the Great tit does not [in general] hoard food), and its even been reported to use tools (conifer needles) to winkle insect larvae out ...
TY - JOUR. T1 - Mechanisms associated with an advance in the timing of seasonal reproduction in an urban songbird. AU - Fudickar, Adam M.. AU - Greives, Timothy J.. AU - Abolins-Abols, Mikus. AU - Atwell, Jonathan W.. AU - Meddle, Simone L.. AU - Friis, Guillermo. AU - Stricker, Craig A.. AU - Ketterson, Ellen D.. N1 - Funding Information: We would like to thank Alexander Kauffman at UCSD for use of lab space and equipment and Tim Gentner at UCSD for serving as our representative to the IACUC. John McCormack and Brant Faircloth assisted with sequencing of the junco reference genome and provided support to GF. Jessica Graham, Emily Stewart, Katie Needham, Rachel Hanauer, Alex Hughes, Abby Kimmitt, Sam Slowinski, and Charli Taylor helped to collect and process samples. This work was funded by the National Science Foundation (IOS-1257474 to EK and IOS-1257527 to TG). SM acknowledges Roslin Institute strategic grant funding from the Biotechnology and Biological Sciences Research Council ...
In Canadas boreal forest, the impact of timber harvesting on bird populations is complicated, differing by species, region, forest type, harvest prescription, length of time after harvest, and so on. Forest harvesting may cause changes in bird species composition, diversity and abundance, and these changes can be positive, neutral or negative, depending on the species and the types of habitat that it uses.. For example, early successional species such as mourning warbler (Oporornis philadelphia), chestnut-sided warbler (Dendroica pensylvanica) and white-throated sparrow (Zonotrichia albicollis) benefit from harvesting, as they prefer a younger forest. But some forest-dependent species, such as brown creeper (Certhia Americana), boreal chickadee (Poecile hudsonica) and ovenbird (Seiurus aurocapilla) are sensitive to the loss of old forest habitat.. Other species, such as woodpeckers, require dead or dying trees for nesting and feeding, while others require the cavities created by woodpeckers in ...
Robin nestlings in their nest. The American Robin, Turdus migratorius, is a migratory songbird in the thrush family. At this stage in development, the nestlings eyes are sealed shut. - Stock Image C025/0612
Amur Falcon (6) Annam Patridge (1) Arctic Warbler (1) Ashy Drongo (1) Ashy Minivet (3) Asian Barred Owlet (1) Asian Fairy Bluebird (1) Asian Koel (1) Asian Openbill (8) Asian Paradise Flycatcher white morph (2) Asian Stubtail (8) Austens Brown Hornbill (1) autumn (3) Ba Be (2) Ba Vi (9) Bach Ma (1) Bach Ma National Park (1) Baikal Bush Warbler (2) Bar-backed Partridge (1) Bar-bellied Pitta (4) Bar-winged Flycatcher-shrike (1) Bare-faced Bulbul (1) Barn Owl (2) Barred Buttonquail (3) Bi Doup (1) Bird trappers (3) Black Baza (1) Black Bulbul (1) Black Drongo (3) Black Eared Kite (1) Black Stork (6) Black-billed Magie (1) Black-breasted Thrush (5) Black-browed Reed Warbler (1) Black-capped Kingfisher (4) Black-crowned Fulvetta (1) Black-crowned Night Heron (3) Black-faced Bunting (3) Black-faced Spoonbill (2) Black-headed Bunting (1) Black-headed Munia (1) Black-headed Sibia (1) Black-legged Kittiwake (1) Black-naped Monarch (2) Black-naped Oriole (1) black-naped tern (2) Black-shouldered Kite (2) ...
The Carolina Wren is an energetic, generalist species that frequents homes and gardens, as well as wilder habitats. Found mainly in the eastern United States and Central America, it is most common in the southern US where every patch of woods seems to be inhabited by this nervous, often shy permanent resident. A small bird with rusty upperparts, cinnamon underparts, a distinct white eye-stripe, and a loud and varied repertoire, it is more likely to be heard than seen. Males and females are identical in plumage, but males are often slightly heavier and have longer bills, wings, and legs.. Insects and spiders make up the bulk of this wrens diet. Although they generally feed on or near the ground, foraging individuals sometimes climb trunks and branches like a creeper (Certhia) or nuthatch (Sitta). A strongly philopatric species, the Carolina Wren maintains territories and pair bonds year-round. Both sexes help build the nest, which is usually domed and within 1 or 2 m of the ground. In natural ...
β-defensins are important components of the vertebrate innate immune system responsible for encoding a variety of anti-microbial peptides. Pathogen-mediated selection is thought to act on immune genes
Hårdtrockende københavnske Blackbird Syndicate har tilløb til noget rigtig godt på deres debut EP Meconium, hvor man som udgangspunkt bliver præsenteret for gedigen klassisk hårdrock, inklusiv et væld af guitarsoloer, en vaskeægte rock-vokal og bliver forkælet med fornem instrumentering. Som man måske kan fornemme, er det ikke specielt nyskabende, det Blackbird Syndicate ligger for dagen. Det…
Sylvia also worked closely with the Gay Liberation Front and the Gay Activists Alliance (the latter her feeling was not radical enough). Sylvias life experiences hustling on the streets at age ten, stirred within her during these revolutionary days of gay liberation the idea of creating a refuge for underage street queens. Even though Sylvia was only nineteen at this time, she realized the hardships endured by the younger street youths hustling on the streets, finding shelter, food and safety and in the end many were dead after several years of being on the street due to drugs or violence against their queerness. Sylvia had a strong desire to setup a place where these young street youth could find comradeship, safety, family, community and importantly learn skills to move on to a better kind of life. And so S.T.A.R. was officially formed following Sylvias engagement with the NYU Weinstein Hall occupation in 1970. STARs first home was in the back of a trailer truck, or at least until one day ...
Wren wasnt very concerned once he was there although he was worried as we drove there. He was worried that he might be going to the orthodontist AKA the awful dentist. There was a slight mixup in the instructions for Wrens antibiotic so we had to wait a bit for the appointment as it had not been a full hour since he had taken them. We enjoyed a coffee during the intermission. When it was Wrens turn for the chair he was very brave and kept asking the dental assistant if he was all done now ...
Many seasonal breeders adjust the timing of reproduction in response to year-to-year variations in supplementary environmental cues, amongst which ambient temperature is thought to be most influential. However, it is possible that for species such as the great tit (Parus major L.), phenological cues from sprouting vegetation and the consequent abundance of invertebrate prey, although dependent on temperature, may provide supplementary environmental cues per se. This hypothesis was investigated in breeding pairs of great tits kept in outdoor aviaries. In spring, experimental pairs were provided with access to leafing birch branches and caterpillars as a visual food cue, while control pairs were provided with non-leafing branches. Observations were made on the onset of laying and on concentrations of plasma luteinizing hormone (LH) at regular intervals to monitor changes in reproductive function. The onset of egg laying was not advanced by the presence of leafing branches and caterpillars. LH ...
Human population growth has resulted in more frequent interactions between humans and wildlife, making it increasingly important to understand how anthropogenic disturbance affects animal populations. A number of recent studies on birds have shown that individuals experiencing high levels of disturbance are frequently more aggressive than conspecifics living in less disturbed areas. Our study asked whether heterospecific aggression varied in Western Bluebirds (Sialia mexicana) breeding in artificial nest boxes over a gradient of human disturbance in the Okanagan Valley of British Columbia, Canada. Unlike most previous studies, which have investigated effects of high disturbance (urbanization), our study focused on sites with lower rates of human disturbance, including ranch lands, vineyards, and recreational trails. Using decoys and playback, we measured the response of bluebird pairs to a simulated territory intrusion by one of two heterospecifics: a competing cavity nester, the House Wren ...
Songbirds[edit]. Not only are songbird and human language parallel regarding neural and molecular factors, they also are ... Young songbirds will imitate their species' call when presented with songs from their own and another species. They are ... Young male songbirds produce varieties of immature songs that are referred to as babbling because the immature songs precede ... Humans learn language through similar means, which is why this early vocalization in songbirds is considered babbling.[19] ...
Songbird[edit]. Main article: Songbird (comics). Candy Southern[edit]. Candace "Candy" Southern is a former girlfriend of ...
CS1 maint: discouraged parameter (link) Bill Reed (2000). "An Interview With Jo". Songbirds. Retrieved 13 September 2012. CS1 ...
Songbirds. Archived from the original on 2000-09-29. Production notes from the Jazz Discography Project. ...
... songbirds; raccoons; and reptiles. In addition, a wild turkey named Giuliani was first spotted at Riverside Park in 2003, and ...
Santiago, Ivan (2000). "Dinah Shore: Keeping Company with Dinah". Songbirds. Archived from the original on December 17, 2006. ...
Songbirds. Passerine species may be observed throughout the year. The greatest diversity of songbirds occurs in late spring and ...
Warpole, Ian (31 December 2007). "Celtic Songbirds". Irish America. Niall O'Dowd. Archived from the original on 1 May 2020. ...
"Songbirds (DD)". Apple Music. Retrieved 10 September 2020. "2019 ARIA Award Winners Announced". Australian Recording Industry ...
"Rock Creek Songbirds". DC Audubon. Retrieved 15 August 2014. DC Audubon Society - official site. ... DC Audubon also works with area organizations on conservation programs, including restoring songbird habitat in Rock Creek Park ...
Songbirds magazine has reported that, by 1955, Stafford had amassed more worldwide record sales than any other female artist, ... Perrigo, Lucia (August 5, 1947). "Jo Stafford-songbird who flew to tiptop roost of air canaries by singing for (skimpy) supper ... Reed, Bill (Winter 2000). "Jo Stafford". Songbirds (online magazine). Archived from the original on May 16, 2008. Retrieved ...
Reed, Bill (Winter 2000). "Jo Stafford". Songbirds (online magazine). Archived from the original on May 16, 2008. Retrieved ...
... (1851). Favorite Song Birds; a description of the feathered songsters of Britain. W.S. Orr & Company. ... with Sarah Josepha Buell Hale Favorite Song Birds (1851) Cage and Chamber Birds (1853), translated and expanded from the German ...
"Bridie Gallagher - Songbirds". web.onetel.com. Retrieved 23 February 2017. "Sadness as "The Girl From Donegal" Bridie Gallagher ...
Rao, Subha J. (1 April 2015). "When songbirds speak". The Hindu. ISSN 0971-751X. Retrieved 17 April 2020. Thiruvarutchelvar at ...
"The SongBirds Music". Archived from the original on 21 December 2016. Retrieved 21 November 2019. "The Songbirds To Stream Live ... and Gaby Moreno to form the vocal group The SongBirds. The SongBirds' 2012 EP was launched at the Sunset Marquis Hotel by ... In 2014, The SongBirds toured Australia performing shows in Perth, Melbourne, Brisbane and finishing with a sold-out show at ... The SongBirds ended the year with two tracks featured on the nationwide Australian compilation The Spirit of Christmas 2014. In ...
Songbirds[change , change source]. All birds make noises ('bird vocalisation'), but not all sing. Songbirds are passerines, ... Birds that are not songbirds include pigeons, seagulls, eagles, owls and ducks. Parrots are not songbirds, even though they can ... Songbirds, parrots, and other species are popular as pets. Guano is harvested for use as a fertiliser. Birds figure throughout ... Some birds can sing, and they are called songbirds or passerines. Examples are robins, larks, canaries, thrushes, nightingales ...
Consider for example songbirds. These can be divided into two groups - Corvida, which retains ancient characters in phenotype ... It is the loss of these ancestral traits rather than their presence that signifies which songbirds are more closely related to ... but their shared traits were present in the ancestors of all songbirds already. ... each other than to other songbirds. However, the requirement that taxa be monophyletic - rather than paraphyletic as in the ...
Doyle, Rose (13 October 2001). "Songbirds on society's margins". The Irish Times. Retrieved 11 June 2020. Luddy, Maria (1992 ...
Songbirds eat the berries. One subspecies of this plant is very rare and is federally listed as an endangered species. It is ...
"Songbirds on society's margins". The Irish Times. Retrieved 2020-06-12. "The Curragh Museum". www.military.ie. Retrieved 2020- ...
Chida, Precious (31 October 2019). "Top songbirds combine forces". Newsday. Retrieved 22 November 2019. N, Sarah (17 January ...
The fear is expressed, that when England is lighted from one end to the other with electricity the song birds will die out from ... How many of us, it asks, foresee that electricity may extirpate the songbird? ... With the exception of the finches, all the ... "Electricity and English songbirds". Los Angeles Times. 14 September 1897. "National Geographic Magazine". National Geographic. ... The following is an excerpt from that article, called "Electricity and English songbirds": An English journal has become ...
Andersen, Johannes C. (1962). New Zealand Song Birds. Davies, N. (2000). Cuckoos, Cowbirds and Other Cheats. T & A D Poyser, ... 1926). Bird-Song and New Zealand Song Birds. [With plates.] Whitcombe & Tombs. OCLC 771056654.CS1 maint: multiple names: ...
John K. Terres (1953). Songbirds in Your Garden. New York: Thomas Y. Crowell Company. John K. Terres (1960). The Wonders I See ...
Kildare, Ireland.JPR02 Borenstein, Seth (April 27, 2006). "Songbirds grasp grammar, too". Northwest Herald. p. 2 - via ...
"The Songbirds Guitar Collection". Songbirdsguitars.com. Retrieved 2017-03-04. "A tour of Songbirds, Chattanooga's new guitar ... This video of the Songbirds Guitar Museum in Chattanooga includes footage of 2 pre-war Martin D-45s in that collection: one is ... "A tour of Songbirds, Chattanooga's new guitar museum with the world's rarest guitar collection". YouTube. Retrieved 22 April ...
It was shown at cinemas from 29 April of that year, Storer opined, "I'm really proud of the Songbirds: You've Got a Friend live ... Songbirds General Williams, Sue; Milte, Catherine (1 September 2008), "Chapter 5: The Sweet, Sly Work of Song: Sara Storer, ... From 2007 to 2009 she joined Beccy Cole and Gina Jeffreys to form a country music trio, Songbirds. The group released a live ... Storer has been a member of a country music trio, Songbirds (2007-09) alongside Beccy Cole and Gina Jeffries. Her older brother ...
"Songbird". San Diego Journal. June 20, 1947. p. 4. "Birthdays Noted at Party (Young Stars at Rodeo Drive Home for Party)". ...
Malcolm Ross (2013). "What's New : Malcolm Ross". Songbird. POTI, Inc. Retrieved 1 March 2013. Official website Roddy Frame on ... ISBN 1-904994-10-5. "What's New : Aztec Camera". Songbird. POTI, Inc. 2013. Retrieved 1 March 2013. ...
Songbirds (sometimes known as "Songbirds of Country") was an Australian country music girl group, formed in 2007 by platinum ... The idea referring to the former sellout show of Songbirds. "SONGBIRDS Venue Brothers Leagues Club". Entertainment Cairns. 2009 ... Songbirds was announced in early 2007 initially as a four-show tour in NSW, however it sold out and additional dates added and ... In October 2011, Songbirds were the feature act on a 7-day South Pacific Island cruise. "Youve Got a Friend" (May 2009) In ...
The Silence of the Songbirds - Bridget Stutchbury (archived by the Wayback Machine) SILENCE OF THE SONGBIRDS by Bridget ... Silence of the Songbirds (ISBN 978-0-8027-1609-5) is a book by bird lover and scientist Bridget Stutchbury about the rapid ... Despite the diminishing populations of songbirds in recent decades, she provides advice for their survival. CBC Radio, Quirks ... She mentions additional threats to songbirds: light pollution, tall buildings, and wind farms. ...
Charlies Song Birds - Home - Breeder of Carduelan finches, Canaries, and mules/hybrids. Great site, with good information related to the breeding and keeping of some of these European birds.
"Arctic Songbirds of Alaska". He talked about "Arctic Songbirds of Alaska" on the evening of February 23, 2017 at Barnes & Noble ... Arctic Song Birds of Alaska WKU Libraries Far Away Places speaker series kicks off its spring season with Noah Ashley, ...
Half a billion songbirds are killed each year as they migrate between Europe and Africa. Historically, farmers across the ... With populations in precipitous decline, the killing of migratory songbirds was outlawed nearly 40 years ago under Europes " ... It seems the voice that CABS first gave to songbirds decades ago is finally being heard. ...
Learn about a Salmonella outbreak linked to wild songbirds. ... Salmonella Outbreak Linked to Wild Songbirdsplus icon *Where ... Salmonella in Wild Songbirds and in People in the United States. Birds can carry germs like Salmonella while looking healthy ...
Songbirds are alike in having the vocal organ highly developed, though not all use it to ... Songbird, any member of the suborder Passeri (or Oscines), of the order Passeriformes, including about 4,000 species-nearly ... Although songbirds include some of the best songsters, such as thrushes, some have harsh voices like crows, and some do little ... The songbird brain has two main neural pathways. The first is a motor pathway involved in song production, and the second is a ...
Read investigation details about a Salmonella outbreak linked to wild songbirds. ... Wild songbirds, such as pine siskins, can be found throughout the United States, so this outbreak may not be limited to the ... Epidemiologic and laboratory data show that contact with wild songbirds and bird feeders is likely making people sick in this ... Epidemiologic and laboratory data showed that contact with wild songbirds and bird feeders made people sick in this outbreak. ...
French gourmands are to be denied what one restaurant critic describes as the "barbaric pleasure" of feasting on tiny songbirds ...
Oscine songbirds invest a substantial amount of time producing song, which has important roles in male-male competition and in ... Oscine songbirds invest a substantial amount of time producing song, which has important roles in male-male competition and in ... Nottebohm, F., and Arnold, A. P., 1976, Sexual dimorphism in vocal control area of the songbird brain, Science 194: 211-213. ... Goller, F., and Larsen, O. N., 1997, A new mechanism of sound generation in songbirds, Proc. Natl. Acad. Sci. USA 94: 14787- ...
"Tiger sharks will see an easy meal and snatch it up, but I was surprised to learn that the sharks were eating songbirds--I ... But this is the first time scientists have evidence that tiger sharks eat songbirds that primarily live on land. Thats because ... Baby tiger sharks eat songbirds DNA analysis of shark barf tells scientists what kinds of birds the sharks scavenge ... "The tiger sharks scavenge on songbirds that have trouble flying over the ocean. During migration, theyre already worn out, and ...
2007): Incomplete and Inaccurate Vocal Imitation after Knockdown of FoxP2 in Songbird Basal Ganglia Nucleus Area X. PLoS ... Songbirds are a useful model to address this because, like human youngsters, they learn to vocalize by imitating the sounds of ... So, what does this research tell us about the way in which FOXP2 affects song development in song birds? The affected area of ... Similarly, the fact that FOX2P affects neural development in similar ways in song birds and humans demonstrates the importance ...
We know that songbirds also declined in the Yellowstone area due to over-browsing of streamside habitat by elk. However, the ... Could wolves help songbirds weather climate change? January 27, 2012 Sylvia Fallon ... A new study has documented a decline in songbird populations in Arizona as a result of climate change. What gets less attention ... If Mexican wolves were able to reduce the browsing pressure in Arizona and enable the return of some of these songbirds, it ...
Song Bird. PARIS - Take a pinch of PJ Harvey, an ounce of Bjork, the pipes of Billie Holiday and the gap-toothed smile of a ...
Song Birds. Sheet music + birds = song birds! These cute and simple ornaments could easily be made from any unwanted book, ...
When you consider how many songbirds there are in the U.S., its safe to say that they constitute a major reservoir of ... by Mark Schroeder of Ohio Wesleyan University about the prevalence of methicillin-resistant staphylococci in wild song birds ( ...
Are Those Song Birds in Your Pants ... ???. In this case ... a bird on the leg might be worth 10 in the clink. Youre looking ... at an official photo of some dumbass named Sony Dong who tried to smuggle 14 songbirds into LAX on a commercial flight from ...
Duke University scientists have parsed the role of the Huntingtons disease gene in an area of the songbirds brain responsible ... Songbirds pinpoint effects of Huntingtons disease. Duke University. Journal. Proceedings of the National Academy of Sciences. ... The songbird is ideal for studying Huntingtons disease, Mooney said, because of the way evolution has enhanced the regions of ... Songbirds pinpoint effects of Huntingtons disease Action of gene traced in brain area for complex movements ...
Scientists studying how songbirds stay on key have developed a statistical explanation for why some things are harder for the ... "We hope that our mathematical framework for how songbirds learn to sing could help in the development of human behavioral ...
Now, a new study -- published Tuesday in the Journal of Applied Ecology -- suggests feeding bluebirds can help the songbirds ...
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PASSEREAUX / Song Birds. [ BACK TO BIRDS FAUNA / RETOUR A FAUNE OISEAUX ]. VOICI DES OISEAUX OBSERV S DANS NOTRE COSYST ME ...
2009) A basal ganglia-forebrain circuit in the songbird biases motor output to avoid vocal errors. Proc Natl Acad Sci USA 106: ... Vocal ontogeny in songbirds provides a good model for understanding how complex motor behavior, including speech, is learned. ... Social performance reveals unexpected vocal competency in young songbirds Message Subject (Your Name) has sent you a message ... 1999) Social context modulates singing-related neural activity in the songbird forebrain. Nat Neurosci 2:209-211. ...
The extra DNA could help explain why there are so many songbird species ... Songbirds appear to have an extra chromosome in cells involved in sexual reproduction. ... All 14 songbirds carried the extra chromosome in their germline cells, but none of the non-song birds did. Borodin says this ... Songbirds typically have 40 pairs of chromosomes in most cells of their body. But in the late 1990s, biologists studying zebra ...
Caves, E.M., Green, P.A., Zipple, M.N. et al. Categorical perception of colour signals in a songbird. Nature 560, 365-367 (2018 ... Categorical perception of colour signals in a songbird. *Eleanor M. Caves1. na1, ...
Adopting the name Songbird, she joined Zemo in his plot to make the world believe they were heroes called the Thunderbolts. ... Known superhuman powers: Songbird can transform the sound of her voice for a variety of uses. She can create simple 3- ... Adopting her mothers maiden name as an alias, Screaming Mimi had a short criminal career before becoming Songbird. She was ... Zemos planned failed, but Songbird and other members decided they preferred being good guys and set out to make the ...
McGill Newsroom The research has implications for understanding human developmental disorders such as autism Adult songbirds ... "Songbirds first listen to and memorize the sound of adult songs and then undergo a period of vocal practice-in essence, ... Adult songbirds modify their vocalizations when singing to juveniles in the same way that humans alter their speech when ... Lead author Jon Sakata, a professor of neurobiology at McGill, says that songbirds learn vocalizations like humans learn speech ...
Songbirds use spectral shape, not pitch, for sound pattern recognition Message Subject (Your Name) has sent you a message from ... Songbirds use spectral shape, not pitch, for sound pattern recognition. Micah R. Bregman, Aniruddh D. Patel, and Timothy Q. ... Past work characterizes songbirds as having a strong bias to rely on absolute pitch for the recognition of tone sequences. In a ... Surprisingly, songbirds seem to lack this capacity, although they can learn to recognize human melodies and use complex ...
Turn your back yard to a garden delight for songbirds, woodpeckers and other native birds with these tempting treats. ... Designed specifically for wild birds, these foods can help you turn your backyard into a garden delight for songbirds, ...
Contact Songbird Floristry in Sherwood on WeddingWire. Browse Flowers prices, photos and 37 reviews, with a rating of 5.0 out ... Songbird Floristry. Songbird Floristry. Wedding in red. Elegant. Table decor. Bouquets. Cream. Pop of color. Small accessories ... Songbird Floristry. Songbird Floristry, Sherwood, OR 97140 Map · Phone number · Visit website ... About Songbird Floristry. Songbird Floristry (previously named Arranged for You Floral Events) is a wedding florist located in ...
  • Songbird , also called passerine , any member of the suborder Passeri (or Oscines), of the order Passeriformes , including about 4,000 species-nearly half the world's birds-in 35 to 55 families. (britannica.com)
  • Songbirds are distinguished from other perching birds by certain anatomical characteristics, especially the more complicated vocal organ, or syrinx . (britannica.com)
  • Tiger sharks will see an easy meal and snatch it up, but I was surprised to learn that the sharks were eating songbirds--I assumed that they'd be seabirds," says Kevin Feldheim, a researcher at Chicago's Field Museum and a co-author of the study who led the DNA analysis that told the researchers what kinds of birds the sharks were eating. (eurekalert.org)
  • He notes that the terrestrial birds might make more attractive prey than seabirds because the seabirds can handle themselves better in and around the water than the songbirds can. (eurekalert.org)
  • Within two months of receiving the virus carrying the gene mutation, the songbirds sang abnormal songs, and more songs in general, compared to healthy birds. (eurekalert.org)
  • All 14 songbirds carried the extra chromosome in their germline cells, but none of the non-song birds did. (newscientist.com)
  • Designed specifically for wild birds, these foods can help you turn your backyard into a garden delight for songbirds, woodpeckers and other native and migrating species. (petsmart.com)
  • Unlike many aquatic birds, modern songbirds lose only a few feathers at a time, enabling them to stay aloft year-round for foraging or to escape predators. (sciencenews.org)
  • Certain songbirds can contract their vocal muscles 100 times faster than humans can blink an eye - placing the birds with a handful of animals that have evolved superfast muscles, University of Utah researchers found. (phys.org)
  • While evolution and genetic variation between birds has been an interest for songbird and genetic researchers for years, recent advances have allowed investigations like Bay's to flourish. (theaggie.org)
  • Similar symptoms of conjunctivitis have been seen mainly in finches in the Northwest over a year ago, but this unknown illness affects mainly immature, larger birds, including grackles, blue jays, starlings, robins, cardinals, sparrows, bluebirds and other songbirds. (newburyportnews.com)
  • Of the three orders of birds in which vocal learning has been found to occur, the neurobiology of vocal communication has been most extensively studied in songbirds (oscine passeriformes). (jarvislab.net)
  • Download Birds Daytime Exteriors Full Kingdom Nature Photo Songbird. (tradebit.com)
  • Zebra finches are passerines, perching birds in the same class of our familiar songbirds. (wm.edu)
  • To determine whether the brain cluster is really specialized for night-vision, the researchers performed the same gene expression analysis on the night-migratory songbird species with the birds' eyes covered. (bio-medicine.org)
  • Like humans, songbirds learn to sing by first listening to adult birds and then mimicking those sounds through a process of trial-and-error. (healthcanal.com)
  • Like humans songbirds learn to sing by first listening to adult birds. (bio-medicine.org)
  • Therefore, songbirds and other small, terrestrial birds could have been directly involved in the genesis of novel A(H7N9) viruses and subsequent infection in humans. (cdc.gov)
  • The durable perching surface enables songbirds to perch comfortably, and the special circular perch design allows for numerous birds to eat at one time. (jedds.com)
  • An article published in January 2018 connected genetic variations in migratory songbirds with population changes due to climate change. (theaggie.org)
  • York University biology researcher Bridget Stutchbury said, "Many small migratory songbirds use agricultural land as a stopover to refuel on long flights. (inhabitat.com)
  • Cluster N is a cluster of forebrain regions found in night-migratory songbirds that shows high activation of activity-dependent gene expression during night-time vision. (nih.gov)
  • Migratory songbirds have a specialized night-vision brain area ( Neurobiologists have discovered a speci. (bio-medicine.org)
  • In their study, the researchers compared two species of night-migratory songbirds -- garden warblers and European robins -- with two non-migratory songbirds -- zebra finches and canaries. (bio-medicine.org)
  • Furthermore, non-migratory songbirds did not show strong activation in the Cluster N even under moonlight conditions. (bio-medicine.org)
  • Adult songbirds modify their vocalizations when singing to juveniles in the same way that humans alter their speech when talking to babies. (mcgill.ca)
  • Lead author Jon Sakata, a professor of neurobiology at McGill, says that songbirds learn vocalizations like humans learn speech. (mcgill.ca)
  • Decades of research have led to the widespread belief that songbirds, unlike humans, are strongly biased to use absolute pitch (AP) in melody recognition. (pnas.org)
  • Researchers at Duke University are using this technology to study the brains of songbirds and determine what implications their findings could have for humans. (wunc.org)
  • In both humans and songbirds, vocal learning depends on auditory guidance to achieve and maintain optimal vocal output. (nih.gov)
  • Songbirds, along with humans, are one of only six animal groups (including bats, parrots, hummingbirds, and cetaceous whales and dolphins) that are known to exhibit vocal learning. (ualberta.ca)
  • The perception of categories is a powerful phenomenon that has been demonstrated in many animal species, including humans and songbirds. (ualberta.ca)
  • A comparative analysis of auditory perception in humans and songbirds: a modular approach. (ualberta.ca)
  • Another difference from humans is that a healthy songbird is always somewhere on a breeding cycle. (wm.edu)
  • For example, like humans, adult songbirds change their vocal output when auditory feedback is altered or absent. (jneurosci.org)
  • Because wild and domestic songbirds interact with humans and poultry, we investigated the susceptibility and transmissibility of subtype H7N9 in these species. (cdc.gov)
  • Songbirds are common household pets and are in close contact with humans and domesticated animals. (cdc.gov)
  • Epidemiologic and laboratory data showed that contact with wild songbirds and bird feeders made people sick in this outbreak. (cdc.gov)
  • Wild songbirds, such as pine siskins, can be found throughout the United States, so this outbreak may not be limited to the states with known illnesses. (cdc.gov)
  • Similarly, relatively little is known about seasonal variation in song structure in wild songbirds. (jneurosci.org)
  • The Ballad of Songbirds and Snakes by Suzanne Collins tops the bestseller lists this week, and sells more than half a million copies across formats. (libraryjournal.com)
  • The Ballad of Songbirds and Snakes (A Hunger Games Novel) by Suzanne Collins (Scholastic Press) debuts at No. 1 on the USA Today Best-Selling Books list. (libraryjournal.com)
  • Despite the diminishing populations of songbirds in recent decades, she provides advice for their survival. (wikipedia.org)
  • A new study has documented a decline in songbird populations in Arizona as a result of climate change. (nrdc.org)
  • In a new study from The Auk: Ornithological Advances , researchers from Gettysburg College test this technology for monitoring songbird populations. (plos.org)
  • Andrew Wilson of Gettysburg College and his colleagues tested the feasibility of combining bioacoustic monitoring and UAVs to survey songbird populations (see YouTube abstract ). (plos.org)
  • Its importance in songbird populations generally and the occurrence of outbreaks in this province specifically are discussed in this fact sheet. (unl.edu)
  • In the new study, using the same species of songbird, Mooney's group introduced the mutated gene in just one region of the brain called the basal ganglia, which is especially vulnerable to the disease. (eurekalert.org)
  • Here, we investigate melody recognition in a species of songbird, the European Starling ( Sturnus vulgaris ), using tone sequences that vary in both pitch and timbre. (pnas.org)
  • This is supported by the researchers' finding that in areas where elk were experimentally excluded and vegetation was allowed to recover, there were three times the numbers of songbirds than in areas that were browsed by elk. (nrdc.org)
  • Last year, researchers at the Rockefeller University in New York described a genetically altered songbird that shows an array of symptoms reminiscent of Huntington's disease, such as tremor, body stiffness and difficulties vocalizing. (eurekalert.org)
  • The fossil find further suggests that Microraptor , which lived 120 million years ago, may have shed only a few feathers at a time - just like modern songbirds, researchers report July 16 in Current Biology . (sciencenews.org)
  • Researchers have gained new insights into the brain by decoding the genome of the zebra finch, a songbird whose males learn a single love song from their fathers that they repeat through life. (nytimes.com)
  • People with mutations in a gene called FOXP2 have several kinds of speech defects, and researchers have found songbirds cannot sing when their version of the gene is disrupted. (nytimes.com)
  • With the songbird, researchers have a way of following a rich natural behavior. (nytimes.com)
  • Songbirds such as sparrows and thrushes carry various forms of bird flu and could potentially spread the viruses to pigs and poultry, U.S. researchers reported on Tuesday. (sej.org)
  • As such, songbirds allow researchers a unique opportunity to directly study vocal communication at the interface between brain and behaviour. (ualberta.ca)
  • Oscine songbirds invest a substantial amount of time producing song, which has important roles in male-male competition and in attracting and stimulating a mate (Howard, 1920), as well as in species (Becker, 1982) and individual (Falls, 1982) recognition. (springer.com)
  • Because forebrain vocal nuclei and vocal learning have not been found in suboscines, the closest relative of oscine songbirds, nor in interrelated groups such as columbiformes (doves and pigeons), or distantly related ones, such as galliformes (chicken and fowl), it has been proposed that vocal learning and associated neural structures evolved independently in songbirds, parrots, and hummingbirds. (jarvislab.net)
  • It shows that there were earlier dispersal events of non-oscine songbirds into Europe before the arrival of Oscines from the Australian continental plate towards the late Oligocene. (biomedsearch.com)
  • Nearly all baby songbirds are fed a primarily insect diet. (snowcrest.net)
  • Adolescent male songbirds, which are just becoming sexually mature,usually sing undirected song,which at that stage is highly variable and immature and sounds like vocal practice. (healthcanal.com)
  • In a finding that once again displays the power of the female, UCSF neuroscientists have discovered that teenage male songbirds, still working to perfect their song, improve their performance in the presence of a female bird. (bio-medicine.org)
  • French gourmands are to be denied what one restaurant critic describes as the "barbaric pleasure" of feasting on tiny songbirds after their government announced that it intended finally to enforce laws that have been on the statute books for eight years. (telegraph.co.uk)
  • Last year, MIT neuroscientists reported that by studying the chirps of tiny songbirds, they were able to identify how two distinct brain circuits contribute to this type of trial-and-error learning in different stages of life. (phys.org)
  • Borodin says this suggests the extra chromosome may have first appeared in the last common ancestor of all songbirds, which lived about 35 million years ago and as such is probably present in all modern songbirds. (newscientist.com)
  • We assessed temporal resolution in three songbird species using auditory brainstem responses to paired click stimuli. (springer.com)
  • These results and the results of a model simulation exploring the effect of broadened auditory filter bandwidth on temporal resolution in the auditory periphery strongly suggest that frequency resolution constrains temporal resolution in songbirds. (springer.com)
  • Henry KS, Lucas JR (2008) Coevolution of auditory sensitivity and temporal resolution with acoustic signal space in three songbirds. (springer.com)
  • Decrements in auditory responses to a repeated conspecific song are long-lasting and require two periods of protein synthesis in the songbird forebrain. (jarvislab.net)
  • Neuroestrogens rapidly shape auditory circuits to support communication learning and perception: Evidence from songbirds. (nih.gov)
  • We first present songbirds as an attractive model to explore how neuroestrogens in auditory cortex modulate vocal communication processing and learning. (nih.gov)
  • This article shows an optimized procedure for imaging of the neural substrates of auditory stimulation in the songbird brain using functional Magnetic Resonance Imaging (fMRI). (jove.com)
  • While current data suggest that LMAN is critical for feedback-driven vocal plasticity even in adult songbirds, it remains unclear what role(s) it plays in facilitating vocal change when auditory feedback is unavailable. (jneurosci.org)
  • Here, we reduced FoxP2 levels in Area X before zebra finches started to learn their song, using virus-mediated RNA interference for the first time in songbird brains. (scienceblogs.com)
  • Silence of the Songbirds (ISBN 978-0-8027-1609-5) is a book by bird lover and scientist Bridget Stutchbury about the rapid decline and loss of many species of songbirds. (wikipedia.org)
  • He talked about "Arctic Songbirds of Alaska" on the evening of February 23, 2017 at Barnes & Noble Booksellers, Bowling Green, KY. (flickr.com)
  • They examined the chromosomes of 14 species scattered across the family tree of songbirds, including finches , skylarks and canaries , along with chromosomes from eight non-songbird species. (newscientist.com)
  • Zebra finches (left) and canaries (right) are two of the most commonly studied and well-described songbirds for neuroanatomy, molecular biology, electrophysiology, and behavior combined. (jarvislab.net)
  • Like other songbirds, when they are fully adult, zebra finches sing two types of tunes: undirected, which they sing when alone, and directed, which is slightly more precise, and is favored by females. (healthcanal.com)
  • Another co-author, Erich Jarvis, a songbird biologist at Duke University, said theirs was one of the first studies to show this high level of gene activity and regulation occurring during a natural behavior. (nytimes.com)
  • H. Lisle Gibbs, a professor in the Department of Evolution, Ecology and Organismal Biology at Ohio State University, contributed a large amount of songbird samples from a collection his laboratory had been saving for a meaningful investigation. (theaggie.org)
  • Today's class, the first in my watercolor songbird Siri's is inspired by the beautiful mountain bluebird, taking note off a coloring and shape of the striking, an unusual songbird, well, paying a loose and playful abstract version. (skillshare.com)
  • Research in the SNL is currently aimed at understanding the cognitive, perceptual, evolutionary, developmental, and neural bases underlying chickadees perception of the acoustic (vocal) categories (i.e., note-types, call types) contained in their calls and songs, as a first step towards a comprehensive understanding songbird acoustic communication. (ualberta.ca)
  • Seasonal changes in the neural attributes of brain nuclei that control song in songbirds are among the most pronounced examples of naturally occurring plasticity in the adult brain of any vertebrate. (jneurosci.org)
  • The behavioral correlates of this seasonal neural plasticity have not been well characterized, particularly in songbird species that lack adult song learning. (jneurosci.org)
  • The use of cDNA cloning and in situ hybridization techniques in combination with the study of alert behaving animals has recently allowed a high-resolution mapping of brain areas involved in perceptual and motor aspects of vocal communication in songbirds. (jarvislab.net)
  • Current research focuses on vocal communication in one particular group of songbirds, the chickadees (e.g. (ualberta.ca)
  • Now, a new study -- published Tuesday in the Journal of Applied Ecology -- suggests feeding bluebirds can help the songbirds fend off parasitic flies. (upi.com)
  • When you consider how many songbirds there are in the U.S., it's safe to say that they constitute a major reservoir of methicillin resistant staphylococci (as well as methicillin resistance genes). (scienceblogs.com)
  • We are interested in identifying behaviorally regulated genes in vocal nuclei of the songbird brain. (jarvislab.net)
  • We are identifying genes active in the songbird brain using RNA seq, ChIP-seq and microarrays. (jarvislab.net)
  • By sorting large numbers of environmental stimuli, such as songbird vocalizations, into categories rather than memorizing each new instance, animals can adapt quickly to newly encountered stimuli. (ualberta.ca)
  • 17-ANDERSON - Wildlife experts investigating an unknown illness that has killed hundreds of songbirds in Indiana and several other states remain puzzled about its cause. (yahoo.com)
  • Indiana Department of Natural Resources is investigating after reports of sick and dying songbirds in five counties. (fox59.com)
  • Songbirds are a useful model to address this because, like human youngsters, they learn to vocalize by imitating the sounds of their elders. (scienceblogs.com)
  • Scientists studying how songbirds stay on key have developed a statistical explanation for why some things are harder for the brain to learn than others. (redorbit.com)
  • We hope that our mathematical framework for how songbirds learn to sing could help in the development of human behavioral therapies for vocal rehabilitation, as well as increase our general understanding of how the brain learns," Sober says. (redorbit.com)
  • Surprisingly, songbirds seem to lack this capacity, although they can learn to recognize human melodies and use complex acoustic sequences for communication. (pnas.org)
  • Songbirds learn a complex song pattern by trial-and-error vocalizations as self-motivated practice, which is executed over a thousand times per day during the sensitive period of vocal learning. (biologists.org)
  • Cardinals are songbirds which do not migrate, but stay year round. (alamy.com)
  • In songbirds (brown thrashers, Toxostoma rufum , and cardinals, Cardinalis cardinalis ), direct observations of the biomechanical effects of contraction largely confirm the functions of the intrinsic syringeal muscles proposed from indirect studies. (biologists.org)
  • Songbirds first listen to and memorize the sound of adult songs and then undergo a period of vocal practice-in essence, babbling-to master the production of song. (mcgill.ca)
  • The Songbird has nine different operating characteristics that offer varied frequency response and amplification. (hearinglossweb.com)
  • Here, we show the behavioral significance of singing frequency in song development in a songbird, the zebra finch. (biologists.org)
  • The SNL studies the cognitive, neurobiological and behavioural substrates underlying songbirds' highly evolved and specialized suite of communication behaviours. (ualberta.ca)
  • The Frauenweiler songbird most notably differs from extant Passeriformes in having a larger processus procoracoideus on the coracoid and appears to be outside Eupasseres, the taxon which includes Oscines (all modern European and most Old World songbirds) and Suboscines (most South and Central American songbirds). (biomedsearch.com)
  • We previously found parallel FoxP2 expression patterns in human and songbird cortico/pallio-striatal circuits important for learned vocalizations, suggesting that FoxP2's function in birdsong may generalize to speech. (nih.gov)
  • Here, we review the role of brain-derived estrogens (neuroestrogens) as modulators within sensory circuits in songbirds. (nih.gov)
  • With bird calls that range from sweet-sounding to demanding, there are many types of songbirds in North America. (birdsandblooms.com)
  • Songbirds are a source of enjoyment for millions of bird watchers. (fed.us)
  • The simple-to-use, easy-to-clean KAYTEE Songbird Station meets the standards of the Wild Bird Feeding Industry. (jedds.com)
  • But this is the first time scientists have evidence that tiger sharks eat songbirds that primarily live on land. (eurekalert.org)
  • Scientists are learning fascinating things by studying songbirds. (wunc.org)
  • The Rockefeller group expressed the mutated gene throughout the entire brain and body of the songbird, affecting many behaviors. (eurekalert.org)
  • But it is not a complicated syrinx alone that determines singing ability, for some true songbirds hardly sing at all). (britannica.com)
  • Our understanding of the functional roles of individual muscles, however, is based mainly on investigations of the dissected syrinx in, for example, songbirds (e.g. (biologists.org)
  • Image: Norepinephrine-producing neurons (green) in the locus coeruleus of the songbird brain. (mcgill.ca)
  • The zebra finch ( Taeniopygia guttata ), a songbird, provides a unique model system for observing the behavioral impacts of voluntary action on learning a complex motor pattern: self-motivated singing practice for song learning. (biologists.org)
  • While the study examined two species of songbirds, "it is very likely that all songbirds have these muscles," he adds. (phys.org)
  • UC Davis evolution and ecology postdoctoral scholar Rachael Bay is the lead author of the study into a songbird common throughout the Americas, the yellow warbler. (theaggie.org)
  • The study shows that the chemicals can directly skew songbird migration . (inhabitat.com)
  • Reportedly, this is the first study to show that imidacloprid ( neonicotinoid ) and chlorpyrifos (organophosphate) - which are two of the most widely-used insecticides - are toxic to seed-eating songbirds. (inhabitat.com)
  • So we decided to study exactly what is going on - at the level of brain cells - in a songbird called the zebra finch," said Jin. (thaindian.com)
  • The current study underscores the usefulness of songbirds as a model for understanding the brain mechanisms underlying social modulation of language learning and other motor skills. (healthcanal.com)
  • Our study demonstrates that a human isolate can replicate in and be shed by such songbirds and parakeets into their environment. (cdc.gov)
  • The song box reaches its greatest complexity in the true songbirds. (britannica.com)
  • Given the gradual development of vocal patterns during song learning, it has been widely believed, for songbirds just as for babbling infants or young pianists, that motor output during learning directly reflects the progress of learning. (pnas.org)
  • Songbirds use complex song to communicate with one another," Elemans says. (phys.org)
  • But there's an easy way to brighten your backyard and fill it with color and song -- charm songbirds looking for an easy, reliable food source. (pjstar.com)
  • Through song development, songbirds produce hundreds of songs every day as self-motivated singing. (biologists.org)
  • Vocal ontogeny in songbirds provides a good model for understanding how complex motor behavior, including speech, is learned. (pnas.org)
  • Another potentially critical issue is whether the presence of UAVs affects songbird behavior, especially their propensity to sing. (plos.org)
  • In this class, I will cover basic drawing and watercolor painting techniques with a specific focus on songbirds. (skillshare.com)
  • Paint a loose and colorful mountain bluebird in the first of my Watercolor Songbird Series . (skillshare.com)
  • The affected songbirds showed neurological signs of illness as well as eye swelling and crusty discharge, according to DNR. (fox59.com)