Males and females are similar with green above and below that turns into rufous orange on the lower chest and belly. Their white leg puffs contrast with their purple under tail coverts. Active and aggressive, Coppery-bellied Pufflegs are adamant chasers of other hummingbirds. They are usually solitary and rather inconspicuous as they feed from long tubular flowers on low shrubs or small trees. Coppery-bellied Pufflegs inhabit the edges of montane forests, shrubby slopes, open páramo, thickets, and wet stunted woodlands.