The Andean Emerald is a elegant and graceful medium-sized hummingbird found along the western and eastern slopes of the Andes, ranging from Colombia and Ecuador into Peru, where it inhabits humid forest edges, gardens, shrubby clearings, and the borders of montane forest typically at elevations between about 900 and 2,200 meters. The male is a beautifully clean and uncluttered-looking bird, displaying bright glittering green upperparts and a contrasting pure white underside that gives it a crisp, two-toned appearance, with a straight to very slightly decurved pinkish-red bill tipped in black that is well-suited for visiting a variety of tubular flowers. The female closely resembles the male in its overall pattern, also showing green upperparts and whitish underparts, making it one of the less sexually dimorphic hummingbirds compared to many of its more flamboyant relatives, though she may show slightly duller or more muted tones in certain lights. The tail in both sexes is forked and bluish-green to grayish, adding a subtle elegance to the bird's silhouette in flight. A relatively common and adaptable species within its range, the Andean Emerald is frequently encountered at flowering plants and hummingbird feeders in gardens and forest clearings, making it one of the more approachable and frequently observed hummingbirds for visitors to the Andean foothills and cloud forest zones of northwestern South America.
