For many birds, just like for many people, red is the color of love. And, as with so many things, there is science behind the color. Researchers at Washington University School of Medicine in St.

Two teams of researchers have independently identified a gene-encoded enzyme in birds that converts yellow pigments obtained from the diet into red pigments, which birds then use to color their ...

In the bird world, the color red has special significance. Many species use red signals to attract mates or deter rivals, adding the color to their beaks, feathers, or bare skin. Generally speaking, ...

This time of year in the Eastern U.S., the birds are emerging in force, many flashing their brilliant reds—bright summer and scarlet tanagers, male cardinals in peak plumage or crimson male house ...

For most birds, the redder the better. Having that vivid hue in their bills, feathers, and even on their bare skin may help males attract mates and ward off would-be rivals. In a pair of Current ...

In the 1300s, Spanish explorers discovered a small bird living in the islands off the western coasts of Portugal and Morocco, with dull green feathers but a sweet lyrical voice. The bird became ...