Every continent holds the memory of an extinct bird that once ruled its skies or forests. From Antarctica’s prehistoric penguins to North America’s towering teratorns, these species represent ...

The slaty-masked tinamou, found in Brazil, is utterly unafraid of people. That could be its undoing, ornithologists worry.

Why it's awesome: The southern cassowary is one of the most prehistoric-looking birds on Earth. They are often likened to a modern-day dinosaur due to their massive size, vivid colouration and ...

Analysis of 216 extinct species by biologists found birds endemic to islands, occupied ecologically specific niche, lacking flight, with large bodies and sharply angled wings were the ones likely to ...

Hundreds and hundreds of years ago, a bird species called the northern bald ibis, with its bald red head and long curved beak, was a common sight across Europe and North Africa until it was hunted to ...

An Imperial woodpecker hasn't been provably sighted since 1956, making it the holy grail for bird watchers in Mexico.

New findings add to evidence that enlarged brains seen in modern birds and presumably in their prehistoric ancestors were not the driver of pterosaurs’ ability to achieve flight, says @HopkinsMedicine ...

True to their nickname, terror birds (Phorusrhacidae) are known as one of the largest and also the most fearsome birds to ever live. These were flightless birds with ...

Ever wonder how saber-toothed cats and other extinct creatures behaved? Well, a team of scientists unearthed ancient footprints that offer insight into how various prehistoric animals lived as far ...

Looking to inform the conservation of critically endangered bird species, University of Utah biologists completed an analysis identifying traits that correlate with all 216 bird extinctions since 1500 ...