A large wild sheep (Ovis dalli) of the mountainous regions of northwest North America, ranging in color from white to nearly black and having large, curved horns.
A wild sheep (Ovis dalli) with white hair and long spiral horns, living in the mountains of NW North America.
A species of wild sheep native to northwestern North America, Ovis dalli.
Origin of dall-sheep
After William Healey Dall (1845–1927), American naturalist