Unlike birds whose plumage is mostly blue, the green coloring of a green bird‘s feathers is the result of pigment, not a ...

Now, researchers reporting a study of familiar pet store parakeets -- also known as budgies -- have new evidence to explain how the birds produce their characteristic yellow, blue, and green feathers.

Bird watchers ... and flashy green, yellow, black, and blue plumage make the Green Jay a special treat to visitors of the Rio Grande Valley. In Texas, the Green Jay breeds almost exclusively ...

Cockatoos that appear to have been painted blue, yellow, green and pink have been spotted ... Credit: Kim Novick Some of the birds are covered with a single colour, but others have a tie-dye ...

Now, researchers reporting a study of familiar pet store parakeets--also known as budgies--have new evidence to explain how the birds produce their characteristic yellow, blue, and green feathers.