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Long-tailed Weasel Mustela frenata


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Long-tailed Weasel, summer coat
credit: PDH

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Family: Mustelidae, Weasels view all from this family

Description A long-tailed weasel with a dark tail tip. Larger than the Ermine, with a relatively longer tail (more than 44% head-body length). Variable amount of white on hind legs and feet. Northern populations molt to a white winter coat. Some populations in Florida and the southwest have white or yellow facial markings (leading to the name Bridled Weasel).

Dimensions 330-420mm, 132-294mm, 160-450g; / 280-350mm, 112-245mm, 80-250g

Similar Species Larger than the Ermine.

Breeding Breeding is in July-August and implantation is delayed until spring.

Habitat Scrub, shrub & brushlands, Grasslands & prairies, Forests & woodlands, Alpine & subalpine habitats, Lakes, ponds, rivers & streams, Meadows & fields, Cities, suburbs & towns, Swamps, marshes & bogs

Range Plains, Great Lakes, New England, Mid-Atlantic, Rocky Mountains, Southeast, Southwest, Florida, Texas, California, Northwest, Eastern Canada, Western Canada

Discussion Hunts small prey, especially mice and young rabbits. Dens are in dense brush along drainages. Found in most habitats through large range, especially near water.