adult least weasel | 25-63.5 g | mouse carcasses in larder | 0.8 hectares | | scent | 170-217 mm | long-tailed weasels, owls, feral house cats | | 4 months | biting through the back of the neck of its prey | slender body | much of Canada except the Maritimes, southern Ontario and Quebec, coastal BC and the northeastern arctic tundra | meadow voles, prairie voles, red-backed voles, deer mice, house mice, harvest mice, amphibians, insects | | 1 gram of food per hour which adds up to more than half the body weight of an adult least weasel per day | belette pygmée | mouse, pocket gopher or mole burrow | fine grass or mouse fur | all winter | dark brown with white underparts in summer, white in winter | least weasel | shrill shriek | stubble fields, meadows, river banks, parklands, mixed forests | more than 100 yards from its home | Mustela nivalis | Order Carnivora | | the smallest carnivore in Canada | Family Mustelidae |
adult female least weasel | 25-58 g | mouse carcasses in larder | 0.8 hectares | 35-37 days | scent | 170-181 mm | long-tailed weasels, owls, feral house cats | babies | 4 months | biting through the back of the neck of its prey | | much of Canada except the Maritimes, southern Ontario and Quebec, coastal BC and the northeastern arctic tundra | meadow voles, prairie voles, red-backed voles, deer mice, house mice, harvest mice, amphibians, insects | 4 days | 1 gram of food per hour which adds up to more than half the body weight of an adult least weasel per day | belette pygmée | mouse, pocket gopher or mole burrow | fine grass or mouse fur | all winter | dark brown with white underparts in summer, white in winter | female mammal | shrill shriek | stubble fields, meadows, river banks, parklands, mixed forests | more than 100 yards from its home | Mustela nivalis | Order Carnivora | 2 or more litters per year | the smallest carnivore in Canada | Family Mustelidae |