Anna's Hummingbird is 10 to 11 cm (3.9 to 4.3 in) long. It has a bronze-green back, a pale grey chest and belly, and green flanks. Its bill is long, straight and slender. The adult male has an iridescent crimson-red crown and throat, and a dark, slightly forked tail. Anna's is the only North American hummingbird species with a red crown. Females and juveniles have a green crown, a grey throat with some red markings, a grey chest and belly, and a dark, rounded tail with white tips on the outer feathers.
Habitat and Distribution
Anna's Hummingbirds are found along the western coast of North America, from southern Canada to northern Baja California, and inland to southern Arizona. They tend to be permanent residents within their range, and are very territorial. Their breeding habitat is open-wooded or shrubby areas and mountain meadows along the Pacific coast from British Columbia to Arizona.
These birds feed on nectar from flowers using a long extendable tongue, and tree sap. They also consume small insects caught in flight.
The breeding season is from mid December to late June. The female bird builds a large nest in a shrub or tree, or in vines or on wires. The nest is round, 3.8-to-5.1-cm diameter. It is built of very small twigs, lichen and other mosses, and often lined with downy feathers or animal hair. The nest materials are bound together with spider silk or other sticky material.
Calls and Songs
The song is thin and squeaky.