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 ...

The redder, the better. And I’m not talking about beets, roses or presidential candidates. I’m talking birds. Well, some birds. In various species, red coloration in a male’s feathers or beak is an ...

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, ...

Why are some birds red? "It's a very basic question," say Auburn University Professor Geoffrey Hill. And, it all comes down to a single gene, called CYP2J19, recently identified by two separate teams ...

Vibrant red birds seem to bring even more cheer to the season, but their meaning has impact year-round. Red birds–also known as Northern Cardinals–are popular images in holiday decor. Their bright red ...

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 ...

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. As far as many birds ...