This is either a Short-tailed Weasel (Mustela erminae) or a Long-tailed Weasel (Mustela frenata)...They are nearly identical in appearance. Short-tails are called Ermine in winter when they turn white [February; Sax-Zim Bog, St. Louis County, Minnesota]
![This is either a Short-tailed Weasel (Mustela erminae) or a Long-tailed Weasel (Mustela frenata)...They are nearly identical in appearance. Short-tails are called Ermine in winter when they turn white [February; Sax-Zim Bog, St. Louis County, Minnesota]](https://photos.smugmug.com/MAMMALS/Weasels-Ermine-Pine-Marten-Fisher/ErmineShort-tailed-Weasel/i-R6K2gPG/0/f3a3d7e2/S/Ermine%20Short-tailed%20Weasel%20Sax-Zim%20MN%20Stensaas%20IMG_0018358-S.jpg)
![This curious weasel (Long-tailed or Short-tailed...I can't see the tail!) responded to my imitation of a cow Moose in rut [October; Superior National Forest, Cook County, Minnesota]](https://photos.smugmug.com/MAMMALS/Weasels-Ermine-Pine-Marten-Fisher/ErmineShort-tailed-Weasel/i-2MXPjfr/0/29182797/S/Short-tailed%20Weasel%20Cook%20Co%20MN%20Stensaas%20777_7712-S.jpg)
![While calling for Moose, we inadvertantly attracted the attention of this curious weasel [October; Superior National Forest, Cook County, MInnesota]](https://photos.smugmug.com/MAMMALS/Weasels-Ermine-Pine-Marten-Fisher/ErmineShort-tailed-Weasel/i-55JG73n/0/902041a8/S/Short-tailed%20Weasel%20in%20Tree%20Cook%20Co%2C%20MN%20Stensaas%20777_7718-S.jpg)
![While calling for Moose, we inadvertantly attracted the attention of this curious weasel [October; Superior National Forest, Cook County, MInnesota]](https://photos.smugmug.com/MAMMALS/Weasels-Ermine-Pine-Marten-Fisher/ErmineShort-tailed-Weasel/i-wVjGpW6/0/1b2b9b98/S/Sparky%20Stensaas%20Weasel%20Cook%20Co%20MN%20777_7712-S.jpg)