Mammals - invasive

Nutria (Myocastor coypus) on Jan 13, 2022

Submitter has sample

Description of specimen

They are either nutria or muskrats. There’s about 5 of them and potentially more lining the creek.

Commentary

Thank you for your report! Your report contributes to our understanding of species' occurrence and distribution. Nutria are a common sight and widely established in the Willamette Valley, making control difficult, however exclusion can be effective. There is a lot of good information about nutria in Oregon on the Oregon Department of Fish and Wildlife's Living With Wildlife site, https://www.dfw.state.or.us/wildlife/living_with/nutria.asp.
Best,
Lindsey

Lindsey Wise
April 29, 2022, 2:41 a.m.

Resources

There is a lot of good information about nutria in Oregon on the Oregon Department of Fish and Wildlife's Living With Wildlife site.

Location

I spotted 5-6 nutria living in the beneath the bridge on the trail near Spyglass park in the Bethany neighborhood. If you take the trail starting on the corner of Joscelyn and 165th place, it will lead you to a bridge that overlooks a pond and wildlife area. There have always been many ducks but recently there has been a consistent amount of nutria in the area, as well.

Expert Reviewer

Mrs. Lindsey Wise
Oregon Biodiversity Information Center, inr.oregonstate.edu/orbic
Oregon iMapInvasives
Institute for Natural Resources
Portland State University

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