New research finds that birds can use lactate, often thought of as a metabolic waste product, as a cellular fuel that aids in ...

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, ...

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 ...