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 ...

Bird beaks are incredibly diverse. Beaks can be thick and strong to crush nuts, curved like a corkscrew to open snail shells, or even full of combs to make it possible to filter food out of water.

WASHINGTON -- Call them "qucks" and "duails." With a little egg tinkering, scientists replaced a duck's flat bill with a quail's pointy beak, breeding some funny-looking birds. But the experiment ...