Credit: Dean E. Briggins, U.S. Fish and Wildlife Service.
Rufous hummingbirds generally inhabit the west coast of North America.
A total of 338 species of hummingbird are known to live on the planet, making hummingbirds one of the most diverse groups of birds. Researchers recently created the first comprehensive evolutionary tree of hummingbirds, and found that they have diversified quite rapidly over the past 22 million years, and continue to diversify today. Less «