Azhdarchid pterosaurs are also the largest ever flying vertebrates.
Make sure your yard isn't a bacteria breeding ground that kills birds and sickens people.
The best bird feeders are sure to attract beautiful, feathery flocks.
The bird sounds like a lightsaber and comes in rare colors. Top that.
Genetics seem to help the world’s most wide-ranging bird of prey fly thousands of miles each year.
A deeper look at crystals pulled from a fossil’s stomach presents an intriguing counterargument.
Cougars in Los Angeles? Coyotes in Chicago? Meet the new neighbors on the block.
A photographer-and-ecologist team are on a mission to document the mightiest members of forests.
Get to know your local avian neighbors.
In 1961, the sooty shearwater invaded California. It took 50 years for scientists to figure out why.
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