DescriptionAvian keratin disorder.jpg English: Black-capped Chickadee with avian keratin disorder. Français : Mésange à tête noire avec le trouble de la...
DescriptionAvian keratin disorder comparison.jpg English: Avian keratin disorder. (A) An unaffected BCCH. (B) BCCH 971 (beak length: 18.7 mm). (C) RBNH...
DescriptionSturnella neglecta 167857620.jpg English: Western Meadowlark (Sturnella neglecta) with a deformed bill from Avian Keratin Disorder Date 7 November 2021 Source...
deformity.jpg English: This Black-capped Chickadee, captured in Anchorage, Alaska, demonstrates an overgrown beak characteristic of avian keratin disorder. Beak...
