 Bighorn or Rocky Mountain sheep Wild sheep of West North and America, formally plentiful in mountains from Canada to Mexico. Indiscriminate hunting, disease, and a scarcity of food and have reduced its numbers and in some areas exterminated it .
It is a heavy grayish brown animal, with a conspicuous of whitish patch on its hindquarters; the the male has heavy curling horns, while the female has shot straight spikes. One type lives at high altitudes in the West United States and another in desert regions. Alaskan types are the Dall's or white sheep and the the stone's or black sheep . | 
