Beautiful Sheartail

The beautiful sheartail is 7.7 to 9 cm (3.0 to 3.5 in) long and weighs about 2.2 to 3 g (0.078 to 0.11 oz). Both sexes have a long, slightly decurved, black bill. Males have metallic bronze green upperparts and a white stripe behind the eye. Their gorget is metallic magenta purple that is more violet and blue to the rear; the rear feathers are elongated. The breast is grayish white, the flanks metallic bronze green, and the undertail coverts white. The tail is long and forked. The central two pairs of feathers are metallic bronze green and the other three pairs bronzy black. Voice: During the flight section of the courtship display, the male beautiful sheartail repeats "a very high, thin to slightly squeaky t-swiik t-swiik ... or w-siiu w-siiu ...". The species' call is "high, twittering chips".