One might hear the insect-like sound of this hummingbird’s wingbeats before actually spotting the bird. The male Slender Sheartail is green above with a pinkish a throat and has an extremely long forked tail. Females lack the impressively long tail and are buffy below with a dark stripe behind the eye. Slender Sheartails inhabit humid and semiarid scrub, forest openings, brush-filled second growth, and woodlands. They feed in the lower and middle strata, most often close to the ground. When feeding on nectar, males hold their tails closed in an almost vertical position but females quickly wag their tails while opening and closing them.