Since 1999, Alaska Science Center biologists have cataloged over 3,000 reports across Alaska of so-called avian keratin disorder in black-capped chickadees, which they cite as “the highest concentration of (visible) deformities ever recorded in a wild bird population.” www.adn.com/alaska-news/...
adn.comScientists believe avian keratin disorder is cause of fishhook beaks in Alaska chickadee populationThe virus is causing “the highest concentration of (visible) deformities ever recorded in a wild bird population.”
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