Passeriform - Plumage, Pterylosis, Molt
Passeriform - Plumage, Pterylosis, Molt: Plumage and the number and distribution of feathers of passerines are considered important taxonomic characters, especially in determining the genera, species, and subspecies. The passeriform vocal apparatus exists in four basic types: unspecialized, tracheophone, intermediate tracheobronchial, and oscine.
Passeriform, any member of the largest order of birds and the dominant avian group on Earth today. Passeriforms (or passerines) are true perching birds, with four toes, three directed forward and one backward. These birds occur in abundance on all continents except Antarctica and on most oceanic islands.
Glossary of Bird Terms
Glossary of Bird Terms
Glossary of bird terms - Wikipedia
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Passeriform - Plumage, Pterylosis, Molt
Glossary of bird terms - Wikipedia
Passeriform - Plumage, Pterylosis, Molt
Glossary of Bird Terms
Glossary of bird terms - Wikipedia
Passeriform - Vocalization, Song, Calls
