Wikipedia
Dall sheep
The Thinhorn sheep (Ovis dalli) is a species of sheep native to northwestern North America, ranging from white to slate brown in colour and having curved yellowish brown horns. There are two subspecies: the nominate Dall sheep or Dall's sheep and the more southern subspecies, Stone sheep (also spelled Stone's sheep) (Ovis dalli stonei), which is a slaty brown with some white patches on the rump and inside the hind legs.
Usage examples of "dall sheep".
Arthur chases a pair of Dall sheep with their curved horns, and they see prints in the snow that look like bear tracks.
Then on a high little lawn under a talus slope Diana spotted a brown bear, and later some Dall sheep.
Went home last fall on vacation and got himself a Dall sheep at eight hundred-plus yards up in Idaho.