Blue-chested Hummingbirds inhabit the edges of humid and wet forests, second growth woodlands, thickets, plantations, gardens with flowering trees, and riparian areas. They seldom spend time in the forest interior and most often forage individually at low flowers around forest borders. These hummingbirds feed by visiting scattered flowers, defending floral territories, or gleaning insects. During the breeding season, males congregate in casual groups and sing together in the undergrowth, and following the breeding or flowering seasons, some birds migrate short distances. Males and females have straight bills and bronzy-green or maroonish tails. Males have sparkling green crowns with a violet blue lower throat and chest. The throats of females twinkle with blue spots.