Hunting for meat and hides has severely decreased the natural population of aoudads in the Sahara. It is normally found between the timber and the snow lines of the Alps. The black buck has ringed horns that have a moderate spiral twist of three to four turns and are up to 28 inches long. The body's upperparts are black while the underparts and a ring around the eyes is white. The light-brown female is usually hornless.
Males are dark brown.
Black bucks frequent the open plains in herds. When the rut reaches a peak, one male establishes dominance. After six months the mated females each bear one fawn, which joins the herd with its mother about two weeks later and remains with her for more than a year. The fastest of the Indian antelopes, black bucks have been overhunted and are in danger of becoming extinct. The name black buck has also been applied to the sable antelope of Africa.