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

That's the way one scientist puts it — referring to how infected wild birds survive long enough to spread it to birds 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 ...

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 ...

Hummingbirds are some of the most beautiful and diverse birds on the planet. With over 360 species, they come in a ...

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