Hello and thank you for your report! Nutria are common throughout the Willamette Valley, so other nutria quickly move in to replace removed animals. Management sometimes occurs if the nutria are threatening infrastructure or key habitats. People can manage nutria on their own property if they wish. The OR Dept of Fish and Wildlife has resources on living with nutria here: https://www.dfw.state.or.us/wildlife/living_with/nutria.asp. There's also a good Oregon Sea Grant guide: https://seagrant.oregonstate.edu/sites/seagrant.oregonstate.edu/files/nutria-species-guide.pdf.
Regards,
Lindsey

Lindsey Wise
May 10, 2023, 2:38 a.m.