The White-bellied Emerald (Amazilia candida) lives from central Mexico to Costa Rica. It prefers forest edge, semi-open, second growth. Its size is of 8.5 cm (3 inches) in height and 4 g in weight.

Above is greenish-bronze, tinged with purplish on forehead, crown and upper tail-coverts. Tail dull bronze. Below is white, speckled with bronze-green on sides of throat, breast and sides. Upper mandible black, lower pink, with black tip, and feet dusky. Feeds at shrubs and herbs.

The Blue-chested Hummingbird (Amazilia amabilis) resides from northeast Nicaragua to east Ecuador. This bird prefers open woodland, tall second growth, banks of streams and rivers, semi-open, and large treefall gaps. Its size is of 8.5 cm (3 inches) in height and 4.2 g in weight.

Its crown is glittering green, and upperparts bronzy-green. Central retrices purplish-bronze and chin dark green. Chest and throat blue-violet, and belly grayish. Bill black, except pink basal half of lower mandible, and feet dusky. This bird pollinates flowers of trees, shrubs and herbs.

The Charming Hummingbird (Amazilia decora) inhabits in Costa Rica and Panama. It is also called Beryl-crowned Hummingbird. It is found in open woodland, coffee plantations, second growth, gardens with scattered trees, and in forested areas along streams, riverbanks, and in clearings. Adults are 9 cm (3 inches) in height and 4.5 g in weigh.

Its crown is glittering blue-green. Upperparts, central retrices, lower breast and sides are bronzy-green. Upper tail-coverts purplish, chin dark green, and lateral retrices blue-black. Belly buffy-gray, feet dusky, and bill black. Visits flowers, shrubs, epiphytes and trees.

The Mangrove Hummingbird (Amazilia boucardi) lives only in Costa Rica. Its place is restricted to mangroves where its favorite flower, Pacific mangrove. Its measures are 9.5 cm (3 inches) in height and 4.5 g in weight.

Above is uniform bronzy-green. Its throat and chest are bright bluish-green, becoming bronzy on lower breast and sides. Belly dull white, feet dusky, and bill black except pinkish base of lower mandible. This bird also visits flowers of other trees, vines and epiphytes.

The Blue-tailed Hummingbird (Amazilia cyanura) resides from south Mexico to Nicaragua and accidentally in Costa Rica. Its natural habits are open woodland, edges, shed in trees in coffee plantations, and young second growth. Its size is of 9 cm (3 inches) in height and 4.5 g in weight.

This bird is identical to Sleety-vented Hummingbird except secondaries rufous, with dusky tips. And its tail slightly more violet-blue. This bird pollinates flowers, especially Inga flowers.

The Sleety-vented Hummingbird (Amazilia saucerottei) ranges from west Nicaragua to Costa Rica, and also in Colombia and northwest Venezuela. Is found in second growth, scrubby savanna with scattered trees, coffee plantations and gardens, at openings and edges of evergreen gallery forests. Matures are 9 cm (3 inches) in length and 4.5 g in weight.

Above bronzy-green, shading to bronze on wing-coverts and lower back. Rump purplish-bronze. Below entirely glittering dark green, with blue crissum, and feet black. Feeds on trees, shrubs, vines, epiphytes, and herbs.