Mammals of Philadelphia, Pennsylvania
The mammals most often spotted near Philadelphia, ranked by recent research-grade observations.
27,056
recent observations
47
species listed
47
mammals
Naturalists have logged 27,056 research-grade observations across the 47 most-recorded species near Philadelphia. The most frequently seen is the White-tailed Deer, with 7,396 recorded sightings.
Rarer finds confirmed near Philadelphia include Bobcat - uncommon enough that a sighting is worth logging.
Most-observed mammals near Philadelphia
White-tailed Deer
Odocoileus virginianus
7,396 observations
Eastern Gray Squirrel
Sciurus carolinensis
6,106 observations
Eastern Cottontail
Sylvilagus floridanus
2,636 observations
Red Fox
Vulpes vulpes
1,935 observations
Groundhog
Marmota monax
1,893 observations
Eastern Chipmunk
Tamias striatus
1,437 observations
Domestic Cat
Felis catus
1,152 observations
Common Raccoon
Procyon lotor
1,074 observations
American Beaver
Castor canadensis
856 observations
Northern Short-tailed Shrew
Blarina brevicauda
462 observations
Virginia Opossum
Didelphis virginiana
392 observations
Muskrat
Ondatra zibethicus
192 observations
Brown Rat
Rattus norvegicus
182 observations
Striped Skunk
Mephitis mephitis
174 observations
White-footed Mouse
Peromyscus leucopus
164 observations
American Mink
Neogale vison
137 observations
Coyote
Canis latrans
126 observations
House Mouse
Mus musculus
118 observations
Eastern Meadow Vole
Microtus pennsylvanicus
97 observations
American Red Squirrel
Tamiasciurus hudsonicus
97 observations
Eastern Red Bat
Lasiurus borealis
95 observations
Big Brown Bat
Eptesicus fuscus
86 observations
Southern Flying Squirrel
Glaucomys volans
55 observations
Silver-haired Bat
Lasionycteris noctivagans
40 observations
Eastern Mole
Scalopus aquaticus
33 observations
North American River Otter
Lontra canadensis
19 observations
Gray Fox
Urocyon cinereoargenteus
15 observations
American Black Bear
Ursus americanus
11 observations
Star-nosed Mole
Condylura cristata
11 observations
Eastern Deermouse
Peromyscus maniculatus
9 observations
European Rabbit
Oryctolagus cuniculus
8 observations · iNaturalist
Northern Meadow Jumping Mouse
Zapus hudsonius
8 observations
Woodland Vole
Microtus pinetorum
7 observations
Northern Hoary Bat
Lasiurus cinereus
6 observations
North American Porcupine
Erethizon dorsatum
6 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
Bobcat
Lynx rufus
1 observation
Wild Boar
Sus scrofa
1 observation · iNaturalist
Four-toed Hedgehog
Atelerix albiventris
1 observation
Eastern Fox Squirrel
Sciurus niger
1 observation
Tamanend's Bottlenose Dolphin
Tursiops erebennus
1 observation
Mammals in nearby places
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