Unlike birds whose plumage is mostly blue, the green coloring of a green bird’s feathers is primarily a combination of pigment and structure, not just a trick of the light. These birds’ emerald green, ...

“I took this photo at the Rio Grande annual bird fest that occurs every November. I must have spent an hour taking dozens and dozens of pictures of green jays that day. This one stood out because I ...

Bruce the kea is missing his upper beak, giving the olive green parrot a look of perpetual surprise. But scientists are the astonished ones. The typical kea (Nestor notabilis) sports a long, sharp ...

At a glance, the male western tanager looks like a little flame, its ruby head blending seamlessly into its bright, lemon-colored body. Females are less showy, a dusty yellow. The birds spend their ...