Thinhorn Sheep (Ovis dalli) There are two subspecies of thinhorn sheep:  Dall's sheep (Ovis dalli dalli)  Stone's sheep (Ovis dalli stonei) Size:  3 to 3 1/2 ft. (.9 to 1.2 m) tall at the shoulder.  Weigh 125 to 242 lb. (57 to 110 kg).    Distribution in North America:

Habitat:

• Rough terrain, mountain tundra slopes, rockslides.
• In winter they usually move to lower slopes where snow is lighter and where spring green-up occurs sooner.

Notes:

• Dall's sheep are white, Stone's sheep are dark.
• About 1/3 smaller than bighorn sheep.
• Thinner horns than bighorn sheep, and their horns spiral out from the head instead of the bighorn's tight curl.
• Look like domestic sheep but larger and have a smooth coat.
• Horns on females similar to bighorn ewes, smaller than rams.

More information on this species

Be sure to check local regulations for hunting or trapping information on this species.