Based on 3,751 research-grade iNaturalist observations in Oregon, Eastern Gray Squirrel is most often recorded in October; in Oregon it behaves like a year-round resident. It ranks #3 among mammals recorded in the state in our data.
Sciurus carolinensis
Eastern Gray Squirrel in Oregon 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 Oregon in October
Mule Deer
Douglas's Squirrel
Eastern Fox Squirrel
Coypu
North American Porcupine
Common Raccoon
Coyote
Western Gray Squirrel
Places to look in Oregon
National ForestWillamette National Forest
National ForestMount Hood National Forest
National ForestDeschutes National Forest
Botanical GardenHoyt Arboretum
Botanical GardenLeach Botanical Garden
National ForestUmatilla National Forest
FAQ
When does Eastern Gray Squirrel appear in Oregon?
Mainly September–August, with the most records in October.
How common is Eastern Gray Squirrel in Oregon?
It ranks #3 by number of iNaturalist observations among mammals in Oregon (3,751 records in our sample).