Tracking the Ermine

A nice post on looking for Short-tailed Weasels (aka Stoats or Emrine) in Colorado.

Crittering

The short-tailed weasel (Mustela erminea) is Colorado’s smallest native carnivore.  In summer, this diminutive weasel sports a chocolate brown coat with a light underbelly.  In winter, it transforms to pure white except for a black tipped tail. In this white phase, the short-tailed weasel is often referred to as an ermine.

Long-tailed Weasel A long-tailed weasel in Rocky Mountain National Park.

I have now photographed 56 species of the 70 species in my Colorado Mammals Project.  Of the 14 species that remain, ten are incredibly rare, if they even exist in Colorado at all.  The other four include the recently reintroduced Canada lynx, the Virginia opossum (our only marsupial), the invasive feral pig, and the short-tailed weasel (a.k.a. ermine).  It is the winter white ermine that I have set my sights on this winter and hope to photograph next.

Despite its tiny size, the short-tailed weasel is a formidable hunter and…

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