We usually think of birds as small and delicate, but did you know that some of the biggest birds in the world have special ...

Out of the over 10,000 species of birds on Earth, most are capable of flight. They have wingspans that range from 5.5 ...

The largest bird on Earth is the ostrich, which can stand as tall as 9 feet and weigh between 220 and 350 pounds. Although ...

The fossilized leg bone of the terror bird went unidentified for almost 20 years. Nearly 12 million years ago, the largest ...

From ostriches, rheas, cassowaries to emus, they feature on the list of biggest and heaviest birds in the world.