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Fisher Tracking

If you ever think you work hard for the food you eat, try tracking a fisher!  I would estimate that I followed a fisher’s tracks for at least three miles today and other than stopping to mark its territory once, and investigate a log or two, there was not a sign of its finding a thing to eat.  Fishers travel widely in search of prey — one was recorded travelling 56 miles in three days.  The fisher I followed traveled through prime snowshoe hare (their most common prey item) habitat, as well as areas where porcupines have been known to den.  A fisher’s food requirements are about one snowshoe hare per week, a squirrel or two per week, or 2 – 22 mice per day.  A porcupine will feed a fisher for a month or so. (Note snowshoe hare tracks on bottom left of photograph, and fisher tracks running diagonally across the image, where the fisher left its mark.)

4 responses

  1. I love tracking fishers. Ever since I saw fisher tracks on the porch of my house (luckily they did not seem interested in the ducks and chickens who overnight in the basement), I have been fascinated by their habits. Plus their tracks are so easy to identify.

    Just to clarify, though – is there a typo in the “2-22 mice per day”? That seems like quite a range!

    January 30, 2012 at 11:30 pm

  2. No typo, Kellyann, though I thought it was strange, too. My resource for those figures is Whitaker and Hamilton’s Mammals of the Eastern United States.

    January 30, 2012 at 11:38 pm

    • Thanks for clarifying. Wow!

      January 31, 2012 at 1:19 am

  3. Cindy B.

    I wonder if that range is informative though. What amount would keep it barely alive verses fat and happy.

    Great blog. Thank you! I look forward to getting your book.

    January 31, 2012 at 12:49 pm

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