Long before humans walked the Earth, the skies of South America were ruled by a colossal bird. Argentavis magnificens, one of ...

A prehistoric bird that lived and died 120 million years ago has presented forensic paleontologists with a baffling medical mystery. Somehow, it managed to die with more than 800 tiny pebbles in its ...

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 ...

Flightless birds have had a rough go of it over the past few centuries, with many going extinct — the most iconic being the dodo bird. But not all have perished. Here are four flightless birds that ...

"It's hard not to feel like a proud parent seeing them out there thriving and making history," London Zoo bird keeper Charlotte James said Jonny Shepherd/TNC-ZSL; TNC-ZSL The once-extinct Sihek bird ...