Weatherdem's Weblog

Bridging climate science, citizens, and policy

Bird Beak Deformation 10X Normal In Northwest North America

Leave a comment

“The highest rate of beak abnormalities ever recorded in wild bird populations has been detected in Alaska and the Northwest, according to a new study.”

The keratin layer of the beak becomes overgrown, resulting in elongated and often crossed beaks. The deformity showed up in adults birds, most often in the upper beak but sometimes in the lower beak or both.  The abnormality — sometimes accompanied by elongated claws, abnormal skin or variations in feather color — impacts a bird’s ability to feed and clean itself.

Many of the birds with the deformities are eating at human-provided feeders, thankfully.  Scientists are searching for the cause of such a large prevalence of cases.  Environmental pollution is a likely candidate.


Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )


Connecting to %s