In a rectangular room draped in camouflage netting, four Harris’s hawks took turns flying back and forth between grass-covered perches while scientists recorded their every biomechanical flutter ...

They found that when birds evolve from a flying ancestor to a new flightless form, the birds' bodies, including the ratio of their wings and tails, change before the feathers do.

The more energy the birds use while flying, the more carbon 13 they expel, in the form of carbon dioxide. Less then remains in their bodies and breath when they are removed from the wind tunnel.

The Common Swift is still technically the fastest flying bird in the world. In fact, it is known to hold the record for the longest continuous flight by staying up to 10 months in the air.

How to prevent millions of birds from getting killed by windows 02:14. LONG ISLAND, N.Y.-- Millions of birds are flying north to New York this spring, but many may not survive the journey because ...

Fossils reveal that bird-like dinosaurs were flying around more than 150 million years ago in the Jurassic Period.. The ability to fly evolved in the branch of dinosaurs that gave rise to birds, as ...

Why birds migrate at night. A large majority of North America’s migratory land birds, about 80%, are nocturnal migrants, Yoerger said. There are some birds, such as Blue Jays, that will migrate ...

“I didn’t even used to like birds,” Harvey says. Yet one day in 2016, she sat on a rocky ledge in a park near the University of British Columbia, resting after a short hike and thinking ...