Mammals of Lowell National Historical Park
The mammals most often spotted in Lowell, ranked by recent research-grade observations.
Most-observed mammals in Lowell
Eastern Gray Squirrel
Sciurus carolinensis
37 observations
Eastern Cottontail
Sylvilagus floridanus
26 observations
Groundhog
Marmota monax
12 observations
American Beaver
Castor canadensis
5 observations
Muskrat
Ondatra zibethicus
5 observations
Common Raccoon
Procyon lotor
4 observations
Eastern Chipmunk
Tamias striatus
4 observations
Striped Skunk
Mephitis mephitis
3 observations
Virginia Opossum
Didelphis virginiana
3 observations
Big Brown Bat
Eptesicus fuscus
2 observations
American Mink
Neogale vison
2 observations
White-tailed Deer
Odocoileus virginianus
1 observation
White-footed Mouse
Peromyscus leucopus
1 observation
Brown Rat
Rattus norvegicus
1 observation
Northern Short-tailed Shrew
Blarina brevicauda
1 observation
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