Based on 2,497 research-grade iNaturalist observations in Maryland, American Beaver is most often recorded in April; in Maryland it behaves like a seasonal. It ranks #7 among mammals recorded in the state in our data.
Castor canadensis
American Beaver in Maryland 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 Maryland in April
Eastern Gray Squirrel
White-tailed Deer
Eastern Cottontail
Red Fox
Common Raccoon
Groundhog
Muskrat
Virginia Opossum
Places to look in Maryland
State ParkWashington Monument State Park
State ParkPatapsco Valley State Park
State ParkSeneca Creek State Park
State ParkCalvert Cliffs State Park
State ParkSusquehanna State Park
State ParkGambrill State Park
FAQ
When does American Beaver appear in Maryland?
Mainly December–June, with the most records in April.
How common is American Beaver in Maryland?
It ranks #7 by number of iNaturalist observations among mammals in Maryland (2,497 records in our sample).