Dull metallic green above and dull grayish-white below. Males have a velvety black throat with a thin, iridescent purple base. Females have a pale throat. In both sexes, the flanks are glossed with dull metallic green. Female’s three outer tail feathers have broad white tips. The bill is black.
Most often seen at feeders or perched on dead branches in tall trees. The Black-chinned Hummingbird is a habitat generalist, found in lowland deserts and mountainous forests, and in natural habitats and very urbanized areas as long as there are tall trees and flowering shrubs and vines.