Black-billed Sicklebill

The black-billed sicklebill (Drepanornis albertisi), also known as the buff-tailed sicklebill (leading to easy confusion with the hummingbird of the same name), is a species of bird-of-paradise. It, along with its congener, are the only members of the genus Drepanornis. The black-billed sicklebill is medium-sized, about 35 cm long, brown. The male has a bare maroon-grey skin around its eye, buff-colored tail, dark-brown iris, yellow mouth and black sickle-like bill. It is adorned with dark, horn-like forecrown feathers, an erectile fan-like bronze neck plumes and elongated purple-tipped flank plumes. The unadorned brown female is smaller, with bill longer than male and dark-barred below.