Emerald

Chlorostilbon is a genus of hummingbird in the family Trochilidae, known as emeralds (as are some hummingbirds in the genera Amazilia and Elvira). A single species, the Blue-chinned Sapphire is variously placed in the monotypic genus Chlorestes or in Chlorostilbon. The taxonomy of the C. mellisugus superspecies is highly complex and, depending on view, includes 1-8 species. All species in this genus have straight black or black-and-red bills. The males are overall iridescent green, golden-green or bluish-green, and in some species the tail and/or throat is blue. The females have whitish-grey underparts, tail-corners and post-ocular streak.

Species

 * Golden-crowned Emerald, Chlorostilbon auriceps
 * Cozumel Emerald, Chlorostilbon forficatus
 * Canivet's Emerald, Chlorostilbon canivetii
 * Garden Emerald, Chlorostilbon assimilis
 * Western Emerald/West Andean Emerald, Chlorostilbon melanorhynchus
 * Red-billed Emerald, Chlorostilbon gibsoni
 * Blue-tailed Emerald, Chlorostilbon mellisugus
 * Chiribiquete Emerald, Chlorostilbon olivaresi
 * Glittering-bellied Emerald, Chlorostilbon lucidus
 * Cuban Emerald, Chlorostilbon ricordii
 * †Brace's Emerald, Chlorostilbon bracei
 * Hispaniolan Emerald, Chlorostilbon swainsonii
 * Puerto Rican Emerald, Chlorostilbon maugaeus
 * Coppery Emerald, Chlorostilbon russatus
 * Narrow-tailed Emerald, Chlorostilbon stenurus
 * Green-tailed Emerald, Chlorostilbon alice
 * Short-tailed Emerald, Chlorostilbon poortmani
 * †Gould's Emerald/Caribbean Emerald, Chlorostilbon elegans