Some scientists point to genetic quirks called mutations as possible triggers for its unexpected look. Genes involved in ...

So, it makes a lot of sense for birds to change color in response. In the study, researchers drew information from over 1200 bird species, showing how urbanization changes feather colors.

The animal kingdom gives us rainbows of color with butterflies and chameleons, and clownfish, but birds give us just as much of a show. Among the peacock, the toucan, and the macaw, there’s a ...

Gavriel Jecan / Corbis For decades, scientists have known how birds with yellow or red feathers usually get their color: It comes from pigments in foods the birds eat. Flamingoes, for instance ...