Black Manakin

The black manakin is 12 to 13 cm (4.7 to 5.1 in) long and weighs 12.5 to 18 g (0.44 to 0.63 oz). The species is sexually dimorphic. Adult males are almost entirely glossy black; their wings and tail are slightly duller and browner. Adult females have dark olive upperparts, a grayish throat, and yellowish olive underparts. Both sexes have a dark brown iris and dark olive-gray legs and feet. Both sexes have a heavy bill; males' are pale bluish gray and females' have a blackish maxilla and a pale bluish gray mandible. Voice: The black manakin has a variety of loud, sharp calls including "skee! kip-kip-kip-krrr, with many variations, and a dry, rattling trrrrrrrrrup" and a "very high, chirping writ wit wit" that varies in pitch.