In the bird world, the color red has special significance. Many species use red signals to attract mates or deter rivals, adding the color to their beaks, feathers, or bare skin.

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 ...

Ingestion of honeysuckle berries causes yellow-shafted flickers to develop orange and even red feathers. C. Hansen. Pigments from feathers usually derive from a bird's diet.

Nature showcases its artistry through vibrant birds, untouched by filters. From the keel-billed toucan's rainbow beak to the ...

In the 1960s, biologists noticed the yellow tips of some birds' feathers were turning orange. 2:16 The cedar waxwing didn’t have any close relatives with red feathers, so the scientists soon ...

Birds come in all shapes, colors, and sizes, but some are particularly breathtaking. Here’s a look at five beautiful birds ...

Mr. Yellow, a male northern cardinal with a rare genetic mutation that causes his feathers to be yellow instead of red caused a sensation when he was photographed in Alabaster, Ala. in 2018.

Dear Bird Folks, When I see snowy egrets flying, I always notice that they have bright yellow feet. Why are their feet yellow? - Eli, 9, Berke… ...

In his doctoral dissertation published in 1991, Hill studied whether female house finches, "the most common red bird you are going to get at your feeder," would prefer mates with yellow feathers ...

The northern cardinal is a familiar bird in our area. Easy to see and easy to identify; the jaunty crest and bright red feathers of the male are unmistakable.

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.

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 ...