In the avian world, birds showcase an incredible diversity of beaks—some enormous, others unusually long, and some even lethal. All hornbill species have a unique structure called a casque on ...

A bird beak is the most important resource it has, and every species has one solely designed for survival. Birds use beaks ...

Under these drastically changing conditions, the struggle to survive favored the larger birds with deep, strong beaks for opening the hard seeds. Smaller finches with less-powerful beaks perished.

ANCHORAGE, Alaska — Inside a chilly enclosure, a 7-year-old peregrine falcon named Breland plucked at a frozen rat carcass with her beak ... at Anchorage’s Bird Treatment and Learning Center.

In Alaska during the mid-1990s, bird experts noticed an uptick in overgrown, warped beaks among black-capped chickadees. Now, using high-throughput RNA sequencing, researchers at the University of ...

“normal” beaks (examples shown of a petrel and a gull) and a bird with a tactile bill-tip organ (a tinamou, close relative of ostriches and emus and which has an ancestral bill-tip organ ...

Why do you think the average beak depth of the birds increased?Because the drought reduced the number of seeds and finches with bigger beaks were able to eat the larger and harder seeds so more of ...

The outer sheaths of birds’ beaks grow continually throughout their lives, but when they are properly aligned, the tips wear each other away and the beak stays straight and normal in length.

Atlantic puffins’ beaks are more reminiscent of birds that live in the rainforest than on chilly cliffs. Bright orange or red, with blue and white streaks, it’s obvious why they’ve been ...