range map of the 3 flying squirrels in North America

Arbogast et alia have published an excellent article titled “Genetic Data Reveal a Cryptic Species of New World Flying Squirrel.” (Journal of Mammology, Aug 2017 issue, pp 1027 to 1041.) As already was previewed on this site, the two North American flying squirrels are now three — or as we say in my house, “Oh great, more things I can drive around at night not seeing.”

I will try to share the range map here as a jpg. / Charles Hood, Palmdale, CA


3 fly sqrl jpg



  • Jon Hall

    Thanks Charles. Unfortunately the only one I saw is right smack in the zone of sympatry (ion Mount Rainier) so I might now need to see both of them again!

  • Venkat Sankar

    Groves Prairie in Humboldt county (40.9556, -123.4870) is a good place to see the newly-described Humboldt’s Flying Squirrel, if you are willing to devote a few hours’ spotlighting on foot in the firs around the camping area there. I saw 2 (maybe 3) in about 3 hours there in June 2014. Note that Black Bears are very common in the area, so be careful walking around at night…

    The squirrels sometimes come in closer or start vocalizing if you play Western Screech Owl or Flammulated Owl calls, making them easier to locate in the deep forest. The area is readily accessible by paved, but unmarked Horse Linto and Waterman Ridge Rds from the town of Willow Creek, CA.

  • Vladimir Dinets

    Nice painting! What is it?

  • CharlesHood

    Vladimir D asks about the art work. I had referenced that in a post about Southern Flying Squirrel a year ago but should have re-credited it. The painting (from 1765) is in Boston’s Museum of Fine Arts (the “MFA”) and is by John Copley. Title is “A Boy with a Flying Squirrel (Henry Pelham).” This link may work:


    Charles Hood. (Sorry Vladimir but I can’t get your comment to approve, so I am just summarizing it.)

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