Some birds with large ranges or big brains may be more vulnerable to climate change than expected due to their specialization ...

While some birds of prey, such as condors and pelicans, are bigger, the eagle is one of the largest birds of prey. There are over 60 eagle species in the world, with most living in Asia and Africa.

The bird species called the Andean Cock of the Rock is known for the large feathery bulb on it's face, but what is it use for?