In black-capped chickadees and other birds affected by the deformity, ... To report a sighting of a bird with a deformed beak, visit the Alaska Science Center website at alaska.usgs.gov.

ANCHORAGE, Alaska --Biologist Colleen Handel saw her first black-capped chickadee with the heartrending disorder in 1998.The tiny birds showed up at birdfeeders in Alaska’s largest city with ...

Notice the different types of beaks and how their shapes dictate a bird’s dining habits — particularly the way it consumes black oil sunflower seeds, a highly preferred food among feeder birds.

ANCHORAGE, Alaska - Biologist Colleen Handel saw her first black-capped chickadee with the heartrending disorder in 1998. The tiny birds showed up at birdfeeders in Alaska's largest city with ...

Flashy and functional, these birds' big beaks all have flair. 1. of 15. ... The beak grows larger and gains more serrations as the bird ages. Young birds have all-black bills. 15. of 15.