Millions of years ago, long-legged, big-beaked, meat-eating “terror birds” stalked the Americas. The imposing creatures ruled the roost as top predators of their ...

Though house sparrows (Passer domesticus) look a bit like native North American species such as chipping sparrows (Spizella passerina), they aren't closely related. These invasive and aggressive birds ...

When a bird drapes its nest with snake skin, it isn't just making an interesting decor choice. Researchers find that for some birds, it keeps predators at bay. When a bird drapes its nest with snake ...

Freed from the threat of invasive predators, Galapagos birds are performing astonishing feats of return and innovation – 200 ...

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