The rufous hummingbird (Selasphorus rufus) male has a rufous face, flanks and tail and an iridescent orange-red throat patch or gorget. Some males have some green on back and/or crown. The female has green, white, some iridescent orange feathers in the center of the throat, and a dark tail with white tips and rufous base. The male will often vigorously chase away all intruders from a patch of flowers - including larger birds. This American hummingbird nests farther north than any other hummingbird: up to south-central Alaska.