Male ruffs have the ability to eliminate excess sex hormones from their bloodstream. We often associate high testosterone ...

Winter poses several challenges for birds. Scarce food supplies and limited water are obvious challenges for nearly all of them. Extremely cold temperatures, strong winds, driving snow and ...

Bird Mimicry Bird that mimic other birds are the cover artists of the bird world, borrowing sounds and tunes from other birds to use as their own. Some mimicry bird species—mockingbirds, thrashers and ...

Use expert tips and a helpful chart to improve your hawk identification skills. Plus, learn about the common types of hawks ...

Sixty-six million years ago, at the end of the Cretaceous Period, an asteroid impact near the Yucat n Peninsula of Mexico triggered the extinction of all known non-bird dinosaurs. But for the early ...