Hello and thank you for your report! Your ID is correct, this is a nutria. Unfortunately nutria are common and widely distributed through the Willamette Valley. It's unlikely that trapping a single animal would have an effect, as nearby nutria will eventually move back in. For these reasons, agencies tend to only remove nutria in specific situations. You can read some ideas on managing nutria at Oregon Dept. of Fish and Wildlife's Nutria page, http://www.dfw.state.or.us/wildlife/living_with/nutria.asp.

-Lindsey

Lindsey Wise
Feb. 8, 2018, 1 a.m.