Owl plumage condition. (A) Flight feathers dirty and greasy. (B
The black sicklebill (Epimachus fastosus) is a large member of the bir
Alma ACOSTA-NIEVES, Zoological Medicine and Surgery Residency Specialty Program, Veterinary Medicine in Animal Science, Universidad Nacional Autónoma de México, Mexico City, UNAM
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Party Animal Recovers from Rough Weekend - Wildlife Images Rehabilitation and Education Center
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Small finlets on owl feathers point the way to less aircraft noise
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Often flies at night hi-res stock photography and images - Alamy
Guillermo GIL ALARCON, Universidad Nacional Autónoma de México, Mexico City, UNAM