It was a spirited debate between friends that surfaced every time we got together. It was not about politics, the economy or the weather, but the more significant question, do birds have bills or ...

The material a bird selects for its nest depends on the dimensions of its beak, according to researchers. The material a bird selects for its nest depends on the dimensions of its beak, according to ...

A 67-million-year-old bird skull has overturned an established theory about how modern birds evolved. Unlike most modern birds, the flightless group that includes ostriches and emus can’t move their ...

A bird beak is the most important resource it has, and every species has one solely designed for survival. Birds use beaks for just about everything: building nests, feeding their young, cleaning ...

Birds are the master vocalists of the animal kingdom. They can make a remarkable variety of sounds. But why is a barred owl more of a baritone, while a cedar waxwing is a soprano? And what influences ...

The material a bird selects for its nest depends on the dimensions of its beak, according to researchers. Using data on nest materials for nearly 6,000 species of birds, a team based at the University ...