Andean Emeralds are found around humid and wet forest borders, second growth, and highland clearings with tress. They are most common above 1000 meters, but seasonal changes in elevation are not unusual. In western Peru, they also inhabit shrubby arid areas. By ear, they might be confused with a Bananaquit (Coereba flaveola), but the song of the Andean Emerald is less melodic. These emeralds are usually seen by themselves, but may gather with other hummingbirds at flowering trees. Males and females are similar in appearance but the male boasts a blue crown and the female a green one. Both genders are green above, white below, and possess a coppery upper tail.