SwallowsDeglutitionDeglutition DisordersManometryRespiratory AspirationCimicidaeEsophagusPeristalsisEsophageal Motility DisordersPharyngeal MusclesFluoroscopyNebraskaPharynxEsophageal Sphincter, UpperAlphavirusBarium SulfateLarynxEpiglottisHyoid BoneFeathersGaggingLaryngeal MusclesSparrowsEsophageal Sphincter, LowerTongueVideo RecordingSucking BehaviorPneumonia, AspirationEsophageal AchalasiaArthropod VectorsEsophagogastric JunctionNervous System Physiological ProcessesHeteropteraSongbirdsBird DiseasesMouthEsophageal StenosisEsophageal DiseasesEructationDiverticulum, EsophagealPressureHemipteraMasticationHernia, HiatalAlphavirus InfectionsLaryngeal NervesGastroesophageal RefluxAsclepiadaceaeElectromyographyHypopharynxPharyngeal DiseasesJawFeeding MethodsOropharynxFeeding BehaviorFundoplicationDiatrizoate MeglumineOvipositionGlottisAnimal MigrationOptical FibersEsophagoscopyEctoparasitic InfestationsIntroduced SpeciesDiagnostic Techniques, Digestive SystemGlossectomyCineradiographyFlight, AnimalVolition