Small green toucan of tepui highlands; unique in range. Appears slender and small-billed with mostly green plumage contrasting with reddish bill and chestnut tail feather tips. Found in mossy highland forest, generally above 800 meters, where groups move through canopy searching for fruit; sometimes moves with other bird species and will congregate around fruiting trees. Not particularly vocal and surprisingly easy to overlook. Call is a wailing grunt, given in a rhythmic series, sometimes for extended periods with short breaks; it is unlike any other bird vocalization in this species’s limited range.