The black partridge (Melanoperdix niger), also known as the black wood partridge, is a small (up to 27 cm long) partridge with a thick bill, grey legs and dark brown iris. It is the only member of the monotypic genus Melanoperdix. The black partridge is sexually dimorphic. The male has entirely glossy black plumage and a black bill, while the female is generally a chestnut-brown bird with a whitish throat and belly and a dark horn-colored bill. The female is smaller than the male.