Why Yellow Birds Mysteriously Turn Red. No one could figure out why a North American woodpecker's feathers were changing color—until now. By Carrie Arnold. October 21, 2016 ...

Clasping a steaming cup of coffee, my fingers stay warm as I watch the brown, gray, blue, red, and yellow birds flit to and fro. Sometimes, they move quickly in a flash of feathers.

Two teams of researchers have independently identified a gene-encoded enzyme that converts yellow pigments obtained from the diet into red pigments, which birds use to color their feathers, bills ...

Although the red-winged blackbird is mostly black, the bright red-and-yellow shoulder patches of the male, which it can puff up when feeling particularly confident, make the male of the species ...

T he most distinguishing characteristic of a male yellow-headed blackbird is its bright yellow head and chest, hence its name. “It’s also bigger than a red-winged blackbird,” says Paige ...

What gives an Australian finch its brilliantly colored red, yellow or orange bill? A major new study has uncovered the ...

image: A red factor canary, created by breeding a wild South American bird called the red siskin with the common yellow canary. view more Credit: David Carroll For many birds, just like for many ...

"To produce red feathers, birds convert yellow dietary pigments known as carotenoids into red pigments and then deposit them in the feathers," says Miguel Carneiro of Universidade do Porto in ...

New research identified a genetic enzyme in birds that converts yellow pigments from their food into red pigments applied to their bills, feathers, and skin.

The blue, green, red and yellow bird was first spotted in Pittsfield on March 16, and its sighting has bird watchers flocking to the area.