The Scissor-tailed Hummingbird is a spectacular and extremely rare hummingbird restricted entirely to the Paria Peninsula of Venezuela. It is a large hummingbird with a long, forked tail and dark green plumage that offsets a bright green throat and violet cap. The female is duller and resembles a female brilliant (Heliodoxa), but has buffy on the underparts and rectrices and a moderately forked tail. This species occurs in humid forest in foothills and on mountain slopes. It feeds on nectar and aerial arthropods, but there is no published information on breeding behavior. The conservation of this species is a serious concern, although much of its range is within the Paria Peninsula National Park.