In breeding season, these birds have white feathers that are dusted with light gray. Their heads are white, and some also ...

Unlike birds whose plumage is mostly blue, the green coloring of a green bird‘s feathers is the result of pigment, not a trick of the light. These birds’ emerald green, lime green, chartreuse, or ...

The sun conure is an exception with its bright yellow body and red, orange, green, and blue feathers. Sun Conure Size Sun conures are considered medium-sized for a bird in the parrot family.

In red feathers, these chains of carbon atoms ended with an organic compound called aldehyde. In yellow feathers, the chains ended with a different molecule called carboxylic acid.

A 2003 study analyzed the feathers of an individual yellow ... The enzyme that converts the carotenoids from the birds’ diet into the red ... With fearsome feet, hawk-sized Cretaceous birds ...

And birds of paradise did.” Martin and Carr eventually set up a special blue-light photo booth for bird specimens’ fluorescent portraits. In the pitch dark, feet fluoresced in a variety of ...

The feathers and beak of the red bird-of-paradise absorb blue and UV light and emit it in ... Birds-of-paradise ‘glow’ with their skin and feathers. By James Ashworth. First published . 18 February ...

Parrot feathers flaunt an array of colors, with yellow, red and orange hues made possible by pigments called psittacofulvins that are found only in the vibrant birds (SN: 3/15/05).

More than a century later, fine particles of pollution still clung to its feathers, dulling what once was a scarlet red breast to a mottled gray. “We’ve known that birds are very sensitive to ...