For birds, simple does not always equal simple—and that difference can create interesting variations in plumage, according to new findings from University of Colorado Boulder researchers and their ...

AUSTIN (KXAN) — Two rare coastal birds, the Piping Plover and the Brown Booby, are expected to be in Central Texas this July.

In many bird species, males are easy to spot because of their bright, beautiful plumage. When the sexes diverge in coloring, females often have drabber colors. In one type of hummingbird, these ...

These two features — concealment from predators and display of health to potential mates and rivals — are the biggest influences on why bird plumage has evolved toward the patterns we see today.

Among the birds of the world, it is usually the males who have the brightest feathers and the females who are the most drab, ...

This elaborate plumage is often used to signal body condition, to intimidate rivals or to attract potential mates. In many cases plumage colouration also depends on the hormone testosterone. Christina ...

Parrots are unique among birds in how they produce the pigmentation that makes their vibrant feathering. It turns out a single enzyme calibrates the reds and yellows of a parrot's brilliance.