Field identification tips: Adult male Anna's Hummingbird (Calypte anna) can be readily identified by the irridescent green back and bright red gorget extending from the throat to the crown. Immature male C. anna will have varying amounts of the gorget feathers growing on the throat and crown; female C. anna has a green crown matching the back, duller gray-green underparts and may have some red gorget feathers on the throat but never on the crown. The gorget will only appear red when the light is striking it at certain angles, otherwise it will be dull black.
Typical range: Unlike other, more migratory North American hummingbirds, C. anna is a resident bird of the west coast states with some seasonal movement from southeast Alaska and into southwest New Mexico and northwest Mexico.
Habitat: Open woodland, coastal scrub and chaparral, suburban yards; this bird can be attracted with feeders and birdbaths.