Anna's Hummingbird is a tiny bird with a bronze-green back and green flanks. Males have iridescent red crowns and throats, while females and juveniles have green crowns and mostly grey throats.
Anna's Hummingbirds live on the west coast of North America. They feed on insects caught in flight, flower nectar, and occasionally tree sap.
Male Anna's Hummingbirds sing during courtship. They also perform a remarkable flight display, diving down at a steep incline and making a noise with their tail feathers at the bottom of the dive.