Black Metaltail

The black metaltail is 11.5 to 12.5 cm (4.5 to 4.9 in) long and weighs about 6 g (0.21 oz). It has a medium length, straight, black bill. The adult male is overall black with a purplish or rosy gray sheen. Its slightly forked tail is iridescent bronzy gold and rosy gray on its upper side and glittering golden-orange on its underside. It has a conspicuous white spot behind the eye and its gorget is glittering turquoise green. The adult female is overall dark smoky gray with a smaller gorget than the male. Juveniles are similar to the female but without a gorget. Voice: What is thought to be the black metaltail's song is "a repeated high-pitched single note, tsee.....tsee.....tsee...". Its presumed chase call is "a descending series of 4–6 high-pitched notes reminiscent of a Picumnus piculet". It also makes a repeated "short dry trill; djrrt...and longer dry chatters."