A common bird of urban areas of the far West, the Anna's Hummingbird makes itself conspicuous by its behaviour as well as its choice of habitat. The male sings frequently from exposed perches, and makes elaborate dive displays at other hummingbirds and sometimes at people.
In the first half of the 20th century, the Anna's Hummingbird bred only in northern Baja California and southern California. The planting of exotic flowering trees provided nectar and nesting sites, and allowed the hummingbird to greatly expand its breeding range.
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