Based on 1,761 research-grade iNaturalist observations in Wisconsin, Muskrat is most often recorded in April; in Wisconsin it behaves like a seasonal. It ranks #8 among mammals recorded in the state in our data.
Ondatra zibethicus
Muskrat in Wisconsin by month
Bars show research-grade observations per month. They mix true seasonality with how often people are outdoors, so treat small numbers with caution.
Also seen in Wisconsin in April
White-tailed Deer
Eastern Gray Squirrel
Eastern Cottontail
Eastern Chipmunk
Common Raccoon
American Red Squirrel
Red Fox
Groundhog
Places to look in Wisconsin
State ParkAztalan State Park
State ParkWyalusing State Park
National ForestChequamegon–Nicolet National Forest
State ParkMerrick State Park
State ParkPerrot State Park
State ParkLake Kegonsa State Park
FAQ
When does Muskrat appear in Wisconsin?
Mainly March–August, with the most records in April.
How common is Muskrat in Wisconsin?
It ranks #8 by number of iNaturalist observations among mammals in Wisconsin (1,761 records in our sample).