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- Calypte costae
Identification
One of the smallest North American birds at 8.9cm (3.5") in length, 12cm (4.75") wingspan. Weight 3.1gm. Irridescent purple head and gorget, which extends at sides. The female is very similar to the Black-chinned Humingbird.
Distribution
Common within a narrow band of low desert, from Central California (summer) to extreme southwest U.S. in winter, extending to the tip of Baja California and down the west coast of mainland Mexico.
Taxonomy
Habitat
Desert hillsides, mesas, and arroyos; follows winter rains to feed on resulting flowers. Nests January through March.
Behaviour
Typical hummingbird behavior, but often soars between flowers
