Wondering about the most dangerous birds on Earth? We've compiled this list of the Top 20 scariest birds — some that have ...

When you think of birds, you might imagine wings flapping silently against a blue sky. The kākāpō, however, lacks these ...

From towering flightless birds to massive species capable of flight, the largest birds on Earth are truly remarkable animals.

Not all birds are meant to soar. Some evolved differently — trading wings for powerful legs, speed, or swimming skills. From ...

WELLINGTON, New Zealand (AP) — Research linking New Zealand’s diminutive kiwi with a giant extinct bird from Africa is prompting scientists to rethink how flightless birds evolved. A report published ...

New Zealand's critically endangered flightless parrot, the kakapo, started breeding last week for the first time in four ...

Madagascar’s elephant birds — which weighed as much as three or four people and went extinct several hundred years ago — turn out to be the closest known relatives of New Zealand’s chicken-sized kiwi.

May 9 (UPI) --Evolution produced the same flightless bird species twice, with each occurrence separated by tens of thousands of years. The phenomena, called iterative evolution, helped bring the ...

There would be at least four times as many flightless bird species on Earth today if it were not for human influences, finds a study led by UCL researchers. The study, published in Science Advances, ...

ALACHUA, Fla. (AP) — A large, flightless bird native to Australia and New Guinea attacked and killed its owner when the man fell on his farm in Florida, authorities said Saturday. The Alachua County ...