Carotenoids are the underlying pigment for much of the enormous variety in color found across birds and form the basis for the colors red, yellow, and orange. In a study published in Current Biology, ...

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 ...

A study examined the effects of anthropogenic noise on cognition, beak color, and growth in the zebra finch. Researchers first tested adult zebra finches on a battery of cognition assays while they ...