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The massive annual spring migration of America's birds – millions of them – is underway. Here's how to follow along at home.

Although this lesson plan was developed primarily for grades 9-12, teachers of ... or landing, birds must overcome the tremendous energy demands of flying. Methods for meeting those energy demands ...

More than 99% of birds can fly. But that still leaves many species that evolved to be flightless, including penguins, ostriches, and kiwi birds. In a study in the journal Evolution, researchers ...

Scientists are piecing together how these iconic reptiles took to the skies. Fossils reveal that bird-like dinosaurs were flying around more than 150 million years ago in the Jurassic Period. The ...

Radar tracking allows you to follow along to see what birds are flying overhead as the birds move to their summer feeding grounds. "The movements are massive," said Andrew Farnsworth, a migration ...

Now, birds are flying our way for the spring migration season. A snow goose near Montreal, a great horned owl in southwestern Ontario, a Canada goose in Langley, B.C. — these are just some of ...

This gives birds their distinct—and misleading—"backward-facing knee" look. Like its non-flying close relatives, Microraptor had elongated bones lining the top and underside of its tail ...

"On a big night in the spring, you're talking 450 to 500 million birds flying under cover of darkness." For the most part, birds aren't at the Northeast yet, as it's the very beginning of our ...