Based on 3,299 research-grade iNaturalist observations in Washington, American Beaver is most often recorded in April; in Washington it behaves like a seasonal. It ranks #6 among mammals recorded in the state in our data.
Castor canadensis
American Beaver in Washington 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 Washington in April
Eastern Cottontail
Eastern Gray Squirrel
Douglas's Squirrel
Yellow-bellied Marmot
Common Raccoon
Harbor Seal
North American River Otter
Coyote
Places to look in Washington
National ForestGifford Pinchot National Forest
National ForestOlympic National Forest
State ParkPeace Arch Park
National ForestColville National Forest
National ForestMount Baker–Snoqualmie National Forest
Botanical GardenBellevue Botanical Garden
FAQ
When does American Beaver appear in Washington?
Mainly January–August, with the most records in April.
How common is American Beaver in Washington?
It ranks #6 by number of iNaturalist observations among mammals in Washington (3,299 records in our sample).