The bird kingdom is filled with intriguing mysteries, from the oldest birds that defy ageing myths to birds who have an ...

How many of the 68 eagle species can you name? Remember, there’s more to the world of birds of prey than the mighty bald ...

Click here for a gallery of some of the world’s most evolutionarily unique birds, including some of the most endangered. More deals, reviews, and buying guides.

The crested ibis is one of the world’s most endangered bird species, but captive breeding programs might help it make a comeback. Image via Flickr user Andy_Li In our October issue, Michelle ...

Humans were raising the 'most dangerous bird in the world' 18,000 years ago, new study shows. Jordan Mendoza. USA TODAY.

The World’s Most Distinct Birds Are Going Extinct Fastest. ... those birds that serve unique — and possibly irreplaceable — functions in their habitats are most likely to disappear fastest.

According to the Library of Congress, the cassowary “is usually considered to be the world’s most dangerous bird” toward humans, posing a similar threat as ostriches and emus.

For comparison, the estimated world population of domestic chickens is somewhere around 25 billion, making them the most abundant bird by far. But this study only looked at wild birds.

The four most numerous bird species in the world as listed by the National Academy of Sciences (NAS) — house sparrow, barn swallow, European starling and ring-billed gull — are found in ...

Passer domesticus is one of the most common animals in the world. It is found throughout Northern Africa, Europe, the Americas and much of Asia and is almost certainly more abundant than humans.