Hummingbirds: Identification Photos Costa's Hummingbird: Adults are mainly green on the back with small black tail and wings. The male's main feature is a vibrant purple throat and cap. Females less colorful. A very small hummingbird, 7.5-9 cm (3-3.5") long. Costa's Hummingbird (Calypte costae) Broad-billed Hummingbird:Adults are mostly metalic green on their backs and breasts changing to white under the tail. The bill is red with a black tip. Male had deep blue throat. Female is less colorful. A medium-sized hummingbird, 9-10 cm (3 1/2-4") long. Broad-billed Hummingbird (Cynanthus latirostris) Allen's Hummingbird: Adult males have iridescent orange-red throat, females have speckled throats. Both have a green back and forehead, and rust-colored rufous flanks, rump, and tail. A small hummingbird, 7.5-9.0 cm (3-3 1/2") long. Allen's Hummingbird (Selasphours sasin) Black-chinned Hummingbird: Adults are metallic green above and white below with green flanks-similar to female Ruby-throated. A small hummingbird, 8.25 cm (3 1/4") long. Black-chinned Hummingbird (Archilochus alexandri) Rufous Hummingbird: Adults have reddish-brown or rufous face, flanks, backs and tail. Males have iridescent orange-red throat and white chest. Females are less colorful with more green on back and crown. Males are smaller than females. A small hummingbird, 8 cm (3") long. Rufous Hummingbird (Selasphorus rufus) Anna's Hummingbird: Adult males have iridescent crimson-red crown and throat and a bronze-green back and a pale grey chest and belly with green flanks. A medium-sized hummingbird, 10-11 cm (4") long. Anna's Hummingbird (Calypte anna) Calliope Hummingbird: Adults have glossy green on the back and crown with white underparts. Male has throat streaked red and white. Females have a cinnamon-buff chest and belly, and dark streaks on their throats. A very small hummingbird and the smallest bird found in the United States and Canada. Calliope Hummingbird (Stellula calliope) Broad-tailed Hummingbird: Adults have iridescent-green backs and crowns and a white breast. Adult makes have brilliant red iridescent throat. Female is less colorful. Male's wings make distinct trilling sound in flight. A medium-sized hummingbird, 9-10 cm (3 1/2-4") long. Broad-tailed Hummingbird (Selasphorus platycercus) Ruby-throated Hummingbird: Adults are metalic green on their backs, and greyish white on their chests. Males have ruby-red throat patch. Females are less colorful. Males are smaller than females. A medium-sized hummingbird, 7-9 cm (3-3.5") long. Ruby-throated Hummingbird (Archilochus colubris)
