
Based on 2,087 research-grade iNaturalist observations in Wisconsin, American Red Squirrel is most often recorded in May; in Wisconsin it behaves like a year-round resident. It ranks #5 among mammals recorded in the state in our data.
Tamiasciurus hudsonicus
American Red Squirrel 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 May

White-tailed Deer

Eastern Cottontail
Eastern Chipmunk

Eastern Gray Squirrel

Muskrat

Common Raccoon
Red Fox

Thirteen-lined Ground Squirrel
Places to look in Wisconsin
Aztalan State Park
Wyalusing State Park
Chequamegon–Nicolet National Forest
Merrick State Park
Perrot State Park
Lake Kegonsa State Park
FAQ
When does American Red Squirrel appear in Wisconsin?
Mainly February–December, with the most records in May.
How common is American Red Squirrel in Wisconsin?
It ranks #5 by number of iNaturalist observations among mammals in Wisconsin (2,087 records in our sample).