Both males and females of this hummingbird boast striking golden tails. The male somewhat resembles Rufous-tailed Hummingbird (Amazilia tzacatl), but the entire bill, save for the tip, of the male goldentail is red, and the goldentail has a blue (not green) throat. These hummingbirds live in bothhumid and dry areas. In humid habitats, they prefer open woodlands and semi-open second growth; in drier regions, they occur in evergreen gallery forests. Throughout their range, they tend to frequent shady and open forest interiors where they forage at the mid and upper levels. Male Blue-throated Goldentails spend part of the year congregating at leks in groups of about ten where they sing incessantly and defend a high perch.