Learn what a Calliope hummingbird looks like, where to find these tiny birds in the U.S., and how to attract them.

PBS Nova explained how a small terrestrial bird was able to survive the devastating asteroid that caused a mass extinction ...

Sixty-six million years ago, at the end of the Cretaceous Period, an asteroid impact near the Yucat n Peninsula of Mexico triggered the extinction of all known non-bird dinosaurs. But for the early ...

Winter poses several challenges for birds. Scarce food supplies and limited water are obvious challenges for nearly all of them. Extremely cold temperatures, strong winds, driving snow and ...