Mammals of Philadelphia, Pennsylvania
The mammals most often spotted near Philadelphia, ranked by recent research-grade observations.
Most-observed mammals near Philadelphia
White-tailed Deer
Odocoileus virginianus
6,778 observations
Eastern Gray Squirrel
Sciurus carolinensis
5,725 observations
Eastern Cottontail
Sylvilagus floridanus
2,400 observations
Red Fox
Vulpes vulpes
1,861 observations
Groundhog
Marmota monax
1,737 observations
Eastern Chipmunk
Tamias striatus
1,342 observations
Domestic Cat
Felis catus
1,112 observations
Common Raccoon
Procyon lotor
1,026 observations
American Beaver
Castor canadensis
789 observations
Northern Short-tailed Shrew
Blarina brevicauda
438 observations
Virginia Opossum
Didelphis virginiana
376 observations
Muskrat
Ondatra zibethicus
189 observations
Brown Rat
Rattus norvegicus
173 observations
Striped Skunk
Mephitis mephitis
162 observations
White-footed Mouse
Peromyscus leucopus
146 observations
American Mink
Neogale vison
129 observations
Coyote
Canis latrans
115 observations
House Mouse
Mus musculus
112 observations
Eastern Red Bat
Lasiurus borealis
90 observations
Eastern Meadow Vole
Microtus pennsylvanicus
86 observations
American Red Squirrel
Tamiasciurus hudsonicus
86 observations
Big Brown Bat
Eptesicus fuscus
80 observations
Southern Flying Squirrel
Glaucomys volans
51 observations
Silver-haired Bat
Lasionycteris noctivagans
40 observations
Eastern Mole
Scalopus aquaticus
33 observations
North American River Otter
Lontra canadensis
16 observations
Gray Fox
Urocyon cinereoargenteus
15 observations
Star-nosed Mole
Condylura cristata
11 observations
American Black Bear
Ursus americanus
10 observations
Eastern Deermouse
Peromyscus maniculatus
10 observations
European Rabbit
Oryctolagus cuniculus
7 observations · iNaturalist
Northern Meadow Jumping Mouse
Zapus hudsonius
7 observations
Northern Hoary Bat
Lasiurus cinereus
6 observations
Woodland Vole
Microtus pinetorum
6 observations
North American Porcupine
Erethizon dorsatum
5 observations
Masked Shrew
Sorex cinereus
5 observations
Domestic Dog
Canis familiaris
3 observations · iNaturalist
Tri-coloured Bat
Perimyotis subflavus
3 observations
Domestic Cattle
Bos taurus
2 observations · iNaturalist
Little Brown Bat
Myotis lucifugus
1 observation
White-nosed Coati
Nasua narica
1 observation
Harbor Seal
Phoca vitulina
1 observation
Four-toed Hedgehog
Atelerix albiventris
1 observation · iNaturalist
Tamanend's Bottlenose Dolphin
Tursiops erebennus
1 observation · iNaturalist