Homing pigeon is a variety of domestic pigeon (Columba livia domestica) derived from the rock pigeon, selectively bred to find its way home over extremely long distances (up to 1,800 km). The wild rock pigeon has an innate homing ability, meaning that it will generally return to its nest and mate. Their average flying speed over moderate distances is around 80 km/h (50 miles per hour) but speeds of up to 140 km/h (90 miles per hour) have been observed in top racers for short distances. Homing pigeons are called messenger or carrier pigeons when they are used to carry messages. Pigeons can find their way back from distant places they have never visited before. Most researchers believe that homing ability is based on a map and compass model, with the compass feature allowing birds to orient and the map feature allowing birds to determine their location relative to a goal site (home loft). While the compass mechanism appears to rely on the sun, some researchers believe that the map mechanism ...

A prevalência de ecto e endoparasitos de 58 pombos (Columba livia) de vida livre foi estudada em áreas urbanas de Lages, estado de Santa Catarina, Brasil. Os pombos foram submetidos ao exame visual para a coleta e identificação de ectoparasitos, coletas de fezes e sangue. O diagnóstico hemoparasitológico foi através de esfregaços sangüíneos corados pelas técnicas de Panótico Rápido e Giemsa. As fezes foram processadas pelo método de Sheather. Entre os hemoparasitos destacou-se o Haemoproteus sp., com 67,24% (39/58) para a técnica de Panótico Rápido e 46,55% (27/58) para a técnica de Giemsa. Dos 116 esfregaços analisados, a prevalência foi de 57% (P = 0,0387; Odds Ratio = 2,357 e Intervalo de Confiança de 95%). A prevalência de parasitos gastrintestinais foi de 74,14% (43/58) com 86,05% para protozoários (100% para Eimeria sp.), 32,56% para nematódeos (Ascaridia sp. e Capillaria sp.) e 20,93% multiparasitados. A presença da mosca Pseudolynchia canarienses foi observada ...

Background: Birds are considered as a reservoir for pathogenic and non-pathogenic fungi. Pigeon droppings have the potential for spreading these fungi to the environment. Cryptococcus species are important fungi associated with pigeon droppings. In this regard, there are many types of yeast associated with guano that is important for human and animal health. Aims: The main objective of this study is the identification of non-Cryptococcus yeasts isolated from pigeon dropping in Shiraz, Southern Iran. Methods: A total of 100 unknown yeasts, which were previously screened and identified as non-Cryptococcus from pigeon guano through the conventional methods, were used in this study. Identification of the isolates was performed based on conventional methods and DNA sequence analysis of internal transcribed spacer (ITS) rDNA gene region. The sequence results were deposited in NCBI database using the Basic Local Alignment Search Tool (BLAST). Results: A total of 16 species belonging to 7 genera were identified

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For this study, we re-analysed a set of GPS tracks from our database. We selected a series of 16 releases that took place between November 2004 and April 2005 from the release site Santa Severa, Italy, 27 km NW of the loft (11.98°N; 42.03°E). During this series only pigeons without any experimental manipulation that could alter homing capabilities were released, all individually. Moreover, it included only pigeons already very familiar with the site. High familiarity allows for the better assessment of the influence of waiting time, because of the reduced orientation uncertainty after repeated releases from the same site (Graue, 1965; Wallraff, 2005).. A total number of 21 homing pigeons of both sexes, 1-4 years old, participated in the selected releases. All pigeons were housed in the facilities of the University of Zurich at Testa di Lepre, Italy, 25 km NW of Rome (12.28°N; 41.93°E), where they were habitually allowed to fly freely outside the lofts, and they underwent regular training. ...

A technique is described whereby the vortex wake of birds in slow forward flight may be investigated with a view towards testing some of the assumptions and predictions of existing theoretical models of bird flight. Multiflash stereophotogrammetry was used to analyse the wake as a pigeon passed through a cloud of neutrally-buoyant helium bubbles.. All photographs obtained support the hypothesis that the wake is composed of a chain of discrete, small-cored vortex rings. This being the case, velocity profiles taken from sections through the wake allow us to estimate the momentum in the wake as represented by vortex rings.. The momentum in the wake appears to be approximately half that required for weight support in unaccelerated, level flight. The possible causes and consequences of this paradoxical result are discussed. ...

This research aims to test the effects of cassia leaf extract on the eating behavior of pigeons for application as a natural repellent. Senna siamea (Cassia) leaves were oven-dried and blended into fine pieces and processed by the simplest extraction method (maceration) with ethyl alcohol 70% solution and were then extracted with hot continuous extraction (Soxhlet extraction) with ethyl alcohol 70% solution. Cereal grain seeds were prepared and soaked in the extracts of the 2 methods in 1.5%, 3.0% and 4.5% concentrations for 24 h. Twenty-four pigeons were prepared with one cage per pigeon. Cereal grains were weighed to 20 grams, which was fed to the pigeons for 24 h and the beginning weight of the cereal grains and the weight of the leftovers were recorded. The food consumption was analyzed to determine the differences among the averages of each method with one-way ANOVA. The findings showed that the averages of the bird food intake based on the maceration method were not different with a statistical

Oriental Turtle Dove (Streptopelia orientalis). Birds of Kazakhstan. author: Vladimir Vorobyov. date: 2017-06-18. location: VKO Katon-Karagay.

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Size: This exotic species is about 11-13″ long, and 13 ounces. Signs of their presence: The bird itself is the most obvious sign. Sounds: Distinctive cooing, clicking as wing tips touch during take-off. Droppings: May accumulate on rafters, building ledges, public areas. Nests: Crude-looking platform nests of sticks, twigs, and grasses. Find them near dormer tie-ins (the joint where the dormer meets the roof), on building ledges, in steeples, attics, and lofts, on top plates of pole barns, on the girders of bridges, and on ornamental architectural features of classic buildings. Diet: Mostly herbivorous. Pigeons eat mostly seeds and grains, but will eat garbage, livestock manure, insects, and the bread and crackers that people feed them. Typical activity patterns: Social style: Sociable, nesting and foraging in large flocks. Daily activity: Diurnal. Hibernator? No. Migrates? No. Where found: In Arkansas these birds can be found everywhere. Pigeons can be found in cities, farms and certain ...

Size: This exotic species is about 11″ long, and 13 ounces. Signs of their presence: The bird itself is the most obvious sign. Sounds: Distinctive cooing, clicking as wing tips touch during take-off. Droppings: May accumulate on rafters, building ledges, public areas. Nests: Crude-looking platform nests of sticks, twigs, and grasses. Find them near dormer tie-ins (the joint where the dormer meets the roof), on building ledges, in steeples, attics, and lofts, on top plates of pole barns, on the girders of bridges, and on ornamental architectural features of classic buildings. Diet: Mostly herbivorous. Pigeons eat mostly seeds and grains, but will eat garbage, livestock manure, insects, and the bread and crackers that people feed them. Typical activity patterns: Social style: Sociable, nesting and foraging in large flocks. Daily activity: Diurnal. Hibernator? No. Migrates? No. Where found: Pigeons can be found in cities, farms and certain agricultural businesses. Habitat: Pigeons prefer domestic ...

Some avian fanciers leave lots of seed available for their doves. Others separate the seed in separate containers, and it is hoped that the doves will select their favorite seed first, but later learn to eat a balanced diet of seeds. We feed our doves once a day; in the evening. We know how much the doves will eat, so there is little waste or no waste to attract rats and mice. We also use a shot glass of niger seed thrown onto the pebbled flights. Doves are active all day, searching out these tidbits. We believe that in their natural state, doves work hard at finding food. The challenge provided here keeps our doves active and in top shape. Overfed, fat doves are not active and are bored. Of course, if we are gone for the weekend, feed hoppers or containers are filled to allow birds to eat at will.. What vitamins do doves need? ...

List of 43 causes for Large fontanelle and Pigeon breast in children, alternative diagnoses, rare causes, misdiagnoses, patient stories, and much more.

Having a passion for wildlife, and ornithology, I believe that no bird is different in terms of characteristics. The fact is, people also despise Feral Pigeons (Columba livia), but nobody has thought about calling a cull. What people dont understand is that no matter the size, nor ferocity of a bird, they are just hunting for survival. Its all well and good, that we spend £200 million (average spending in uk per year) on small, garden birds each year in the UK, to conserve birds, but the point is nobody cares to feed our common seabirds. Your intelligent people, and Im sure you know that we shouldnt splashing the cash on seagull food, but thats why we see them commonly, raiding through litter bins in schools and public areas. Think about this: take a Goldcrest for instance: without bird food, provided, the Goldcrests natural instincts are to forage (in fact they forage 80% of the day), which is exactly what the seagulls are doing ...

The Green Key is an international standard for businesses in the tourism and leisure industry, and in the field for meeting and conference venues, which are seriously and verifiably in related to sustainability, Corporate Social Responsibility (CSR), concern for the environment of the company and the nature around them.. The Green Key guarantees a voluntary commitment of the entrepreneur to do more for the environment than legislation requires of him. The GREEN KEY is a means of communicating the sustainable image of the company to guests, business partners and governments.. To qualify for the Green Key the business has to show appropriate actions regarding the environment and CSR. These measures are partly compulsory, partly optional. Green Key Netherlands has three levels: Bronze, Silver and Gold.. ...

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RD stands for quick and easy changing of the basic hopper sizes and extensions. Now, adding to the existing RDX series (hopper sizes from 3,5 to 92 liters) the range of application has been downsized with the RDM series as well as upsized with the RDL dryer series. RDM stands for resin dryers with a through-put of 0,05 to 1,5 kg/h for small and micro injection units with hopper sizes ranging from 2 to 7 liters. The new dryers are equipped with double wall Borosilicate glass for optimal thermal decoupling, stepless adjustable material sensors in combination with an automatic hopper loading device and a full range process controller, as used on the bigger brother RDX system.. The three hopper sizes 2, 4 and 7 liters are available in two versions, RDM Integral and RDM Split. In the Integral version, the main components build one unit, in the Split version; the process air module and the hopper are separated to allow a more flexible installment to improve ease of use and to take the weight off the ...

The New York Port Authority has announced approval of a $376.3m programme second phase delay reduction programme at John F Kennedy (JFK) international.. The investment programme also includes reconstructing and widening the airports runway 13-31, which is close to three miles in length and handles around a third of the airports total air traffic.. The delay reduction programme includes projects interrelated to the runway work, such as construction of additional access points on nearby taxiways; new taxiways to improve aircraft queuing and enable swifter departures; and easier access from taxiways to terminal gates.. JFK Airport chairman Anthony R Coscia said that the programme was designed to make the airport more user friendly.. These projects have a single goal: to give every one of our 48 million annual customers at JFK a more efficient, passenger-friendly airport. This robust investment will also create construction jobs for around 1,000 during the peak, Coscia said.. Executive director ...

While the two friends stood by the beached dory on Monhegans Fish Beach, the discussion became tense, yet quiet and still. This scene was captured by artist Edward Hopper in the painting Tredwells Folly. Hopper knew Doc as the Island Doctor, and had reached out for help to treat an ailment earlier in the week. A few days after painting it, Edward Hopper headed up to Lobster Cove to visit Doc at Four Winds. Doc greeted the artist at the door. Hopper then handed Doc the small painting of him and Will Stanley next to the beached dory and Wills working dory. As Hopper was still a struggling painter, he gave the painting to Doc in exchange for the medical treatment he had received the week before. It was not unusual at that time for artists to exchange paintings for services or store goods. Doc got a great laugh out of Hoppers painting, and as soon as the piece was framed, it was hung on the wall at Four Winds ...

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Drinking water Doves and pigeons are the only North American birds that can suction water into their esophagus. That means they can drink without having to raise their head. Other birds must dip their bill into water, then let the water drain into their throat by raising their head. Thats a very useful ability for doves. Lab studies have shown that some dove species drink as much as 15-25 percent of their body weight in water daily. Some may also depend on cactus fruits water. Some that regularly eat fleshy fruit and berries may get much of their water from the food. In dry areas, doves water needs can require long flights to reach it, maybe even 25 miles. People seeking water have followed doves to a source because doves can remember where theres water and return to it. Early settlers in arid areas learned what a help the birds could be. Sources: Sibley, The Sibley Guide to Bird Life & Behavior; Rylander, The Behavior of Texas Birds; Tveten, The Birds of Texas Paul and Mary Meredith ...

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*This post by Livia Merrill was originally featured on The Neuroethics Blog. Livia Merrill is a recent graduate from Tulane University in New Orleans, LA, where she has received both her B.S. and M.S. in Neuroscience. Her research of 4 years under Dr. Fiona Inglis, PhD, consisted of dendritic morphological changes in the prefrontal cortex…

Do you have a problem with pigeons?. Some people call pigeons rodents with wings and the reason for this is that they can not only make a big mess of your property, they can also spread germs and diseases.. Pigeons can carry many diseases, such as Cryptococcal Meningitis, Salmonella, Listeria, Viral Encephalitis and E. Coli. When pigeon droppings dry up, they become like a dust substance that can easily be inhaled in the air, creating a high chance of spreading diseases.. This Pigeon Repeller app plays the sounds of various birds of prey that pigeons are extremely scared of. Just play it nearby any pigeons and watch as they scatter and not return for quite some time!. This app works offline and a blast of around 2 minutes should scare the pigeons away for at least an hour, however, if they come back, play the app for a while longer, until they scatter and for a couple of minutes afterwards.. This app will not cure your pigeon problems in the long term. You should make sure your property is ...

Carlos pushed a cage of homing pigeons along Second Avenue to his apartment in the East Village. His friend had given him the birds to start his own rooftop coop in the neighborhood, said @nikokoppel. He met Carlos while wandering the #EastVillage at night in search of pictures. A Instagram, he has been documenting the city that comes to life after the sun sets and the neon ignites. Well share more of @nikokoppels photos for #nytweekender. By nytimes on Instagram.. ...

The effectiveness of i.v. injections of cocaine and d-amphetamine in maintaining schedule-controlled behavior was compared directly in dogs. Behavior was maintained under either a fixed-ratio (FR) 15, fixed-interval (FI)5-min, FI5 -min ( FR5 :S), FI15 -min, FI15 -min ( FR5 :S) or FI45 -min ( FR10 :S) schedule of reinforcement during daily experimental sessions where the maximum number of injections per session was limited to 2 to 11, depending on the schedule employed. Each drug injection was followed by a 10-min (FR schedule) or 5-min (interval schedules) timeout period to reduce the direct effects of the drugs on responding. Both cocaine and d-amphetamine maintained temporal patterns of responding characteristic of each of the schedules. Similar rates of responding were maintained by cocaine and d-amphetamine under the FR and longer (15- and 45-min) interval schedules, but cocaine maintained higher rates than did d-amphetamine under the shorter (5-min) interval schedules. Brief stimulus ...

Pigeons are probably the most common nuisance bird. Everyone knows that pigeons have adapted to life in the city, and they seem to be everywhere in urban environments. Unfortunately, the bird lovers of the world feed them, and they have developed a dependence upon people, thus reinforcing their dependency upon urban areas. They roost on signs, ledges, almost anywhere, and they bring nesting material and leave droppings everywhere. Pigeons are swimming with filth and disease, as everyone knows. Pigeons can carry or transmit: encephalitis, histoplasmosis, Newcastle disease, pigeon ornithosis, cryptococcosis, pigeon coccidiosis, toxoplasmosis, pseudo-tuberculosis, and salmonella food poisoning. Pigeons can carry fleas, ticks, mites, and other parasites. ...

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Hey, I am a NICU nurse and have two children with very sensitive skin. We always recommended Dove sensitive skin to the parents of babies who couldnt handle baby soap so thats what I started using 8 years ago. I learned a couple things about Dove that didnt jump out at me when I used it at the hospital:. 1. Kroger and Wal- Mart both make a generic version of Dove Sensitive Skin that are awesome. Both sell for 100% less than the brand name! Wal-Mart does have a community giving program, most stores have a community liason (I recommend making your request long before the holiday season starts!).. 2. Both the generic and brand name soaps are very thick, and are not designed to rinse off easily like soaps made for baby skin. Dilute the Dove/generic Dove. Saves money and is better on the skin!. 3. Liquid Ivory soap is not a good alternative for Dove/generic Dove. It is very perfumey! My sensitive skin 6 year old is doing great with bar soap Ivory, I can get 3 bars for 35 cents after coupons so the ...

Abstract: During behavioral interventions, practitioners commonly use a variety of reinforcers to maintain behaviors. Despite the ubiquity of this practice, few studies have compared the effects of varied and constant reinforcers on responding. Furthermore, the studies yielded mixed results. Varied reinforcers do not consistently maintain higher relative response rates. The origin of such mixed results could be the interaction among the stimuli used as reinforcers (the degree of substitutability).The effects of varied versus constant reinforcers on response rates and choice were determined in the present study. Two experiments were conducted with either human participants or rats as subjects. In both experiments, the degree of substitutability between pairs of stimuli was determined using concurrent operant arrangements. After identifying pairs of substitute and complementary reinforcers, the effects of constant versus varied reinforcers on response rates was determined using multiple schedules ...

St. Columba School exists to provide a Christ-centered environment wherein quality education helps each child grow in faith, knowledge, service and love of God.. ...

Eurasian collared doves (Streptopelia decaocto) have expanded their range across the United States since their introduction several decades ago. Recent mortality events in Eurasian collared doves in Arizona and Montana, USA, during the winter of 2009-2010 were the result of pigeon paramyxovirus (PPMV), a novel disease agent. The first instance of mortality by this emerging infectious disease in this species occurred in Florida in 2001 with subsequent disease events in 2006 and 2008. Full diagnostic necropsies were performed on carcasses from the three states. PPMV was identified by RT-PCR and virus isolation and was sequenced to the VIb genotype of avian paramyxovirus-1 (APMV). Other APMVs are common in a variety of free-ranging birds, but concern is warranted because of the potential for commingling of this species with native birds, virus evolution, and threats to domestic poultry. Improved surveillance for wildlife mortality events and efforts to prevent introduction of non-native animals...

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2012-4-24 · constant pitch Feeders for Powder Discharge of Mass Flow Hopper uniform draw by variable pitch a) progressive pitch s S b) progressive screw diameter d S c) degressive core diameter d K ( = 5°) d) degressive screw wall thickness b S e) progressive paddle pitch f) right- and left-hand screw with centric or periphere discharge dead zone ...

So yesterday I said Id write more about the first game of the second half. Here I am. It was great to be back in the ballpark after the time away. I was still stinging a little bit from the Hoppers missing out on winning the first half of the season by such a thin margin.…

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Mister Moon - MM03 GrassHopper is a legends scaled figure that recorder transforms from racing car to robot and back. Mister Moon - MM03 Grass Hopper includes a bazooka and his pistol and is legends scaled standing approximately 10CM/4 in robot mode.

In this video, health advocate Scott Forsgren (aka Better Health Guy) interviews Annie Hopper about the Dynamic Neural Retraining system, a mind-body therapy that has proven to be very helpful for many people with Lyme disease and other chronic conditions.

Local NSW OT Deb Hopper, became a Best Selling Author on Amazon in 2017 for her book about reducing tantrums and meltdowns with sensoring processing tips

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Sean Penns son, Hopper, is speaking out about a journey of his father towards recovery. Read the complete story on pinnacle treatment network blog.

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For the second time, Bryce Davison served as a technical coach on the TV show Battle of the Blades. Among the skaters he worked with was his old partner, Jessica Dubé.