Optical illusions have gained popularity once again and keep popping up online, and the one with the bird is making people scratch their heads. A picture shows a bunch of bright birds sitting together ...

More than 99% of birds can fly. But that still leaves many species that evolved to be flightless, including penguins, ostriches, and kiwi birds. In a study in the journal Evolution, researchers ...

For years, conservation teams in New Zealand followed individual parrots that lived long enough to outlast the people studying them. Some males returned to the same display sites each breeding season ...

Long before humans walked the Earth, the skies of South America were ruled by a colossal bird. Argentavis magnificens, one of the largest flying birds ever discovered, had a wingspan so wide that it ...