Mammals of Philadelphia, Pennsylvania
The mammals most often spotted near Philadelphia, ranked by recent research-grade observations.
26,071
recent observations
45
species listed
45
mammals
Naturalists have logged 26,071 research-grade observations across the 45 most-recorded species near Philadelphia. The most frequently seen is the White-tailed Deer, with 7,081 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
7,081 observations
Eastern Gray Squirrel
Sciurus carolinensis
5,855 observations
Eastern Cottontail
Sylvilagus floridanus
2,555 observations
Red Fox
Vulpes vulpes
1,904 observations
Groundhog
Marmota monax
1,814 observations
Eastern Chipmunk
Tamias striatus
1,386 observations
Domestic Cat
Felis catus
1,130 observations
Common Raccoon
Procyon lotor
1,050 observations
American Beaver
Castor canadensis
809 observations
Northern Short-tailed Shrew
Blarina brevicauda
445 observations
Virginia Opossum
Didelphis virginiana
381 observations
Muskrat
Ondatra zibethicus
191 observations
Brown Rat
Rattus norvegicus
180 observations
Striped Skunk
Mephitis mephitis
168 observations
White-footed Mouse
Peromyscus leucopus
154 observations
American Mink
Neogale vison
133 observations
Coyote
Canis latrans
119 observations
House Mouse
Mus musculus
115 observations
Eastern Meadow Vole
Microtus pennsylvanicus
93 observations
Eastern Red Bat
Lasiurus borealis
92 observations
American Red Squirrel
Tamiasciurus hudsonicus
90 observations
Big Brown Bat
Eptesicus fuscus
85 observations
Southern Flying Squirrel
Glaucomys volans
54 observations
Silver-haired Bat
Lasionycteris noctivagans
40 observations
Eastern Mole
Scalopus aquaticus
33 observations
North American River Otter
Lontra canadensis
17 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
Northern Meadow Jumping Mouse
Zapus hudsonius
8 observations
European Rabbit
Oryctolagus cuniculus
7 observations · iNaturalist
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
Bobcat
Lynx rufus
1 observation
Four-toed Hedgehog
Atelerix albiventris
1 observation · iNaturalist
Tamanend's Bottlenose Dolphin
Tursiops erebennus
1 observation · iNaturalist
Mammals in nearby places
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