Researchers report in Science Express that they have taken a big step in determining what the first birds looked like more than 100 million years ago, when their relatives, the dinosaurs, still ruled ...

OKINAWA, Japan, Nov. 4 (UPI) --Everything seems brighter in the tropics: the sky, the ocean, the houses, the birds. Think tropics and brightly feathered toucans and parrots come to mind. Why is that?

Birds tend to be more colorful in the tropics, and scientists wanted to find out how they got there: if colorful feathers evolved in the tropics, or if tropical birds have brightly-colored ancestors ...

Climate change is making birds less colorful, according to a 15-year study on a common bird called the blue tit. It is dulling flashy feathers and threatening survival as our feathered friends rely on ...

The eggshells of modern birds exhibit a spectacular array of rainbow hues—from butter yellow to blood red, palest aqua to darkest cyan. Some are spotted or speckled; others are blemish-free. How and ...

When I was teaching ornithology, there were several questions that my students would invariably ask at some point during the academic term. One was why are robin eggs blue? Even Charles Darwin ...