Mustela erminea
Order: Carnivora
Family: Mustelidae
Other Names: Ermine, stoat
Status: Winter pelts of value when fur prices are high.
Unprotected predator.
Identifying Characteristics: Of the three North American weasels is
intermediate in size and one of the smallest carnivores in the world.
Males distinctly larger than females. During summer fur is dark brown with
white underparts, white feet, and white line down hind legs. Molts to
white during winter, except black tip on tail. Total length: 7 to 13
inches. Weight: 1 to 6 ounces.
Habitat: Inhabits brushy or wooded areas, usually not far from
water. Tends to avoid dense forest. Prefers areas with high
densities of small mammals. Most abundant in ecotones.
Food Habits: Although short-tail weasels prey on a variety of small
mammals and birds, they specialize in hunting voles.
Life History: Mostly nocturnal but will hunt during the day.
Active throughout the year. Dens in ground burrows, under stumps, rock
piles, or old buildings. Breeds during summer; 8.5 to 10 month gestation;
delayed implantation; young born April or May; one litter per year of 4 to 13
young.
Similar Species: Long-tail weasel - larger, longer tail. Least
weasel - smaller, short tail, no black tip on tail. Mink - larger, uniform
color.
Further Information
