From insects to birds to bats to frogs, these little loudmouths have found ingenious ways to deliver their messages at high volume.

The immune system of black swans leaves them particularly vulnerable to avian flu. When exposed, the virus could kill them within three days.

A puzzle over the identity of an extinct bird that laid eggs across Australia has been solved.

Too much rain and more days of extreme heat may take a toll on the breeding success of songbirds, a new study finds.

New fossils provide a glimpse into dinosaur and bird diversity in Patagonia during the Late Cretaceous, researchers report.

Fifty years ago, the Salton Sea was a draw for boaters and fishermen; today it’s an ecological time bomb. Two water experts who served on a state review panel describe its proposed rescue plan.

New research finds that many parrots use words in appropriate contexts and uncovers species differences in vocal mimicry.

New research finds that many parrots use words in appropriate contexts and uncovers species differences in vocal mimicry.