Some penguins are wonderfully cooperative: they breed in predictable, accessible places, with tidy, well-defined colonies, ...

Does a cuckoo know it's a cuckoo? The answer is more difficult than you might think, explains Richard Pallardy ...

The nest parasites get a bad rap for making other birds raise their young, but study by study, Mark Hauber and his “Cowbird ...

The nest parasites get a bad rap for making other birds raise their young, but study by study, Mark Hauber and his “Cowbird ...

A highly contagious strain of bird flu that’s lethal to poultry and other birds has infiltrated a commercial chicken facility ...

An energetic sanderling running along the beach will warm your bird-loving heart. Here's where to find this small shorebird.

Search for the lovely American avocet along coastlines, lakes, and ponds. Plus, learn about their unique technique when ...

Over the past half century, researchers have established that birds evolved from dinosaurs: specifically, the theropods, the ...

Monotremes are unique mammals that lay eggs, but their limited geographic ranges make them vulnerable. We explain why.