Air SacsAirYolk SacHoarsenessReindeerLarynxDinosaursAir PollutantsAir PollutionPoultry DiseasesEndolymphatic SacVocalization, AnimalNeck MusclesRespiratory SystemResearch PersonnelThoraxAnal SacsTurkeysMycoplasma InfectionsEmbolism, AirAir MicrobiologyFinchesSkullSongbirdsDivingPoultryTracheaAcoustic Impedance Tests