They forage in open to sparse tree habitats and cache their food. Their keen sense of smell can locate prey under snow. Caves, cliffs, hollow logs, and cavities in rocks, and even snow are used as dens. Mainly nocturnal, they can be found about during the day. Home ranges have been estimated to range from 144 sq.mi. to 800 sq.mi.
Males are intolerant of male conspecifics.
However, one male may have several female territories within his home range. Polygonous animals, breeding season lasts from May to July. The young are born from January through April with 1-5 young per litter. Females have one litter per year. Within 7-9 weeks of birth, their young are weaned.