When black-capped chickadees and some other birds in the Anchorage area began turning up in the late 1990s with elongated, weirdly curved or twisted beaks, biologists and bird lovers began to worry.

The zebra finch bird is soft gray, with red eyes, "tear drop" markings (small black lines running straight down under each eye), and bright orange legs and beak. The male zebra finch has a deeper ...

Puffins are widely regarded as the cutest birds on Earth. With their black and white plumage and large orange beaks, Atlantic puffins and their cousins may look like a clownish cross between a ...

Some of these vibrant beaks help birds stand out in dense tropical ... Its oversized bill glows with fiery orange, fading into black at the tip. Though it may look heavy, it’s made of keratin ...

Researchers are careful to say the virus – named Poecivirus after the black-capped chickadee genus – has not yet been nailed down as the cause of distorted beaks. “It could be that birds who ...