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Anna's Hummingbird

Scientific name: Spizella arborea

The male Anna’s Hummingbird has a spectacular dive display that is performed for females during courtship. He will sing briefly near the female, then climb to a height of 100 feet or more, and dive vertically at up to 45 mph, pulling up just below the perched female and then circling back up to his starting point. Anna’s Hummingbirds sometimes direct this display at other bird species, or even humans.

After nesting, many of California’s Anna’s Hummingbirds move to higher elevations or to the south and east, ending up in Arizona or New Mexico. This species is more abundant and has a larger breeding range than it did 80 years ago.

Unlike most hummingbirds, this species overwinters in the United States throughout most of its breeding range, taking advantage of the mild weather of the Pacific coastal states.