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How does a fisher weasel its way inside a live tree to build a nest?

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Fishers peer out of a nest cavity near Crosby in June, 2009.
Contributed
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iNaturalist user mnwild
Fishers peer out of a nest cavity near Crosby in June, 2009.

This week, Heidi Holtan learns all about Minnesota's largest resident weasel: the American Fisher! Plus, listeners remark on grouse and vultures and campers rock out.

Send us a voice memo through SpeakPipe!

Often mistaken for wolverines, fishers are Minnesota's largest resident weasel. Despite their (comparatively) large size, they're rarely seen - except by the scientists who study them!

This week, Heidi Holtan features an interview with Michael Joyce, a wildlife ecologist who works with fishers. We learn about their need for large cavities in living trees, some common misconceptions about their personalities, and how rodent poison can end up affecting fishers.

In addition, we hear from Julia Schrenkler and Chad Kaddatz, who sent in messages via SpeakPipe.

Attributions

  1. American Goldfinch call by Greg Irving, XC429266. Accessible at www.xeno-canto.org/429266.
  2. Michael Joyce's interview originally aired on KAXE as part of a series called Critters that use dead and dying trees, produced by Mark Jacobs.
  3. SpeakPipe messages were left by Chad Kaddatz and Julia Schrenkler.
  4. This episode was produced by Charlie Mitchell and Heidi Holtan.

Love the podcast? What's your favorite weasel? Let us know! Send us a voice memo through Speak Pipe!

Email us at seasonwatch@kaxe.org.

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Charlie Mitchell (she/they) joined KAXE in February of 2022. Charlie creates the Season Watch Newsletter, produces the Phenology Talkbacks show, coordinates the Phenology in the Classroom program, and writes nature-related stories for KAXE's website. Essentailly, Charlie is John Latimer's faithful sidekick and makes sure all of KAXE's nature/phenology programs find a second life online and in podcast form.<br/><br/><br/>With a background in ecology and evolutionary biology, Charlie enjoys learning a little bit about everything, whether it's plants, mushrooms, or the star-nosed mole. (Fun fact: Moles store fat in their tails, so they don't outgrow their tunnels every time conditions are good.)
For more than two decades, Heidi Holtan has helped shape the sound of KAXE. Since joining the station in 2002 as a volunteer music programmer, she has worn many hats including the weekly book program, Realgoodwords, hosting the Morning Show, creation and host of the weekly call-in program Between You and Me, serving as Outreach Producer. Program Director, News Director and currently Director of Content and Public Affairs.
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