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Anchorage Daily News
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- 1Avian keratin disorder linked to deformed beaks in Alaska chickadees●Scientists believe avian keratin disorder is cause of fishhook beaks in Alaska chickadee population
Scientists in Alaska have concluded that avian keratin disorder is behind the fishhook-shaped beaks appearing in the state's chickadee population. The condition causes abnormal keratin growth, leaving birds with elongated, overgrown beaks that can interfere with feeding. The finding, reported by the Anchorage Daily News, marks a step forward in understanding a disorder that has affected Alaska's resident birds for years.