Steller's Jay with beak deformity in Oregon
By Alaska Science Center
March 2021 (approx.)
Detailed Description
Steller's Jay with beak deformity characteristic of avian keratin disorder (AKD) shared by a citizen science observer in Lake Oswego, Oregon, USA. Avian keratin disorder is a disease characterized by debilitating beak overgrowth and other abnormalities of keratinized tissues. Affected birds have difficulty feeding and preening and may suffer high rates of mortality.
Copyright: Photo taken by Patricia Crane
Sources/Usage
Copyright Permission Agreement signed by Patricia Crane. The U.S. Geological Survey has been granted permission to use copyright material in information products including publications, data releases, and webpages.
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Over the past 26 years, Alaskans have witnessed a startling increase of beak deformities among Black-capped Chickadees and other species of resident birds. This disease, called avian keratin disorder (AKD), is characterized by debilitating beak overgrowth and other abnormalities of keratinized tissues. Affected birds have difficulty feeding and preening and may suffer high rates of mortality. If...
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Beak Deformities in Landbirds
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