After ruling out diet, scientists discover the secret behind blue feathers lies inside how the feathers are made. Gavriel Jecan / Corbis For decades, scientists have known how birds with yellow or ...

The animal kingdom gives us rainbows of color with butterflies and chameleons, and clownfish, but birds give us just as much ...

Here is a list of the most colourful birds in the world. The scarlet macaw is a large parrot species. It can grow 32 inches long and weigh up to 2.2 pounds. Mainly red in color, it also has blue wings ...

Most are distinguished by striking colors and bright plumage of yellow, blue ... and attractive birds. Males often sport vibrant feathered ruffs or amazingly elongated feathers, which are known ...

Spring male: crown and back blue-gray streaked ... White or yellow throat. Black streaks on upper breast and side. White wing bars. White spots in outer tail feathers. Spring female: similar ...