Look for a violet-crowned hummingbird in Arizona and New Mexico. Learn what this bird looks like, what they sound like and ...

The Rivoli's hummingbird is a striking, shimmery flier. Learn how to identify these gorgeous birds and why their name was ...

Hummingbirds use torpor to survive long migrations when food is scarce. Researchers found that they regulate fat reserves ...

One U.S. hummingbird species truly hunkers down for the winter, and that’s the Anna’s Hummingbird. In the early 1900s, they ...