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Genus Selasphorus
Volcano Hummingbird - This tiny endemic bird inhabits open brushy areas, paramo, and edges of elfin forest at altitudes from 1850 m to the highest peaks. It is only 7.5 cm long. The male weighs 2.5 g and the female 2.8 g. The black bill is short and straight.
Broad-tailed hummingbird - Male and female both have iridescent green backs and crowns and a white breast. The male has a gorget that shines with a brilliant red iridescence. The female is much duller with rust-colored, mottled flanks and underside; her tail feathers are tipped with a band of white. In flight the male's wings produce a distinct trilling sound diagnostic for this species.
Rufous hummingbird - The adult male, shown in the photo, has a white breast, rufous face, upperparts, flanks and tail and an iridescent orange-red throat patch . Some males have some green on back and/or crown. The female has green upperparts, white underparts, some iridescent orange feathers in the center of the throat, and a dark tail with white tips and rufous base. Females and the rare green-backed males are extremely difficult to differentiate from Allen's Hummingbird.
Allen's hummingbird - The Allen's Hummingbird is common only in the brushy woods, gardens, and meadows of coastal California from Santa Barbara north, and a minuscule portion of lower Oregon. The nominate race of Allen's Hummingbird Ss.
Scintillant Hummingbird - This tiny bird inhabits brushy forest edges, coffee plantations and sometimes gardens at altitudes from 900-2000 m, and up to 2500 m when not breeding. It is only 6.5 cm long. The male weighs 2 g and the female 2.3 g. The black bill is short and straight.