BIRD

Hundreds of millions of birds die in the U.S. every year from collisions with large human-made structures, including buildings, communication towers, and wind turbines.

Have you ever noticed that birds seem to get louder and sing more during the spring season? Well, you're not imagining things. Birdsong is a key indicator of the spring season, as more migratory birds return to their homes to mate.

This little goldcrest may not be big enough to cover all her eggs, but thanks to a unique technique she can still keep them warm. The secret to her success can only be revealed through thermal cameras and has been caught on film for the ...

During mating rituals, male Blue-Footed Boobies show off their feet to prospective mates with a high-stepping strut. The bluer the feet, the more attractive the mate.

Talons as large as grizzly claws, and other facts and stats about Harpia harpyja.