Q. I am pretty sure that ostriches are the biggest birds in the world. But what is the biggest bird in North America?

Learn about bald eagle nesting habits, from how and where to spot the large nests to why they return to the same nest every ...

Discover North America's biggest birds by wingspan, height, and weight, and learn about extinct giants like moas.

Scientists were surprised to discover cassowaries glow under ultraviolet light. It may help the birds distinguish between different species.

The largest birds on Earth are not just bigger versions of common birds, they are extreme evolutionary outcomes shaped by ...