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 red feathers usually ...

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

come from feather pigments — birds’ feathers turn red or yellow as a result of their diet. But the color blue, interestingly enough, differs. Blue jays do have melanin in their feathers ...

One of the loveliest sights an ornithologist runs across is the iridescent blue found in some birds' plumage. Sure, cardinals have red feathers and finches have yellow feathers, but if you ever ...

It’s a colourful puzzle. Blue jays and cardinals get their vivid hues of blue and red, respectively, in different ways – and efforts to understand why may help create coloured displays for ...

What makes a blue jay blue or a cardinal red? Color ... variations in more than 10,000 bird species around the world. How birds make those colorful feathers is the topic Samantha Rutledge ...

They knew that parrots produce psittacofulvins, a type of red ... in the blue birds. In another key experiment, the researchers compared gene expression from feathers of green and yellow versus ...

In the past few decades, ornithologists have noticed some the birds' yellow feathers have mysteriously turned red. (See National Geographic's backyard bird identifier.) At first researchers ...

They knew that parrots produce psittacofulvins, a type of red ... in the blue birds. In another key experiment, the researchers compared gene expression from feathers of green and yellow versus ...