The slaty-masked tinamou, found in Brazil, is utterly unafraid of people. That could be its undoing, ornithologists worry.

In the depths of the Amazon rainforest, a strange song drew scientists to a new species of bird, the first of its kind ...

The fossil was tiny— about the size of a modern sparrow— but it had features in common with a larger fossil bird called ...

The male Lady Amherst's pheasant knows how to put on a show when it comes to attracting mates. As well as elaborate courtship ...