The Rufous-tailed Hummingbird (Amazilia tzacatl) ranges from northeast Mexico to west Venezuela and west Ecuador. It frequents non-forested areas, like open scrub, second growth, thickety edges, semi-open, coffee plantations, gardens, dooryards, and humid forest along breaks and gaps. Its measures are 10 cm (4 inches) in height and 5.2 g in weight.
Above is bronzy-green, with its upper and lower tail-coverts and tail deep rufous. Throat and chest glittering green. Lower breast and sides bronzy. Feet dusky, belly grayish-buff, and bill mostly red. Feeds on Hamelia, Heliconia, Cephaelis, Stachytarpheta, and banana.