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Mammals of Ohio

The mammals most often spotted in Ohio, ranked by recent research-grade observations.

79,219
recent observations
50
species listed
50
mammals

Naturalists have logged 79,219 research-grade observations across the 50 most-recorded species in Ohio. The most frequently seen is the White-tailed Deer, with 18,181 recorded sightings.

Rarer finds confirmed in Ohio include Bobcat, Northern Long-eared Bat and Indiana Bat - uncommon enough that a sighting is worth logging.

BobcatNorthern Long-eared BatIndiana Bat

Most-observed mammals in Ohio

White-tailed Deer
Odocoileus virginianus
18,181 observations
Eastern Gray Squirrel
Sciurus carolinensis
10,312 observations
Eastern Cottontail
Sylvilagus floridanus
8,001 observations
Eastern Chipmunk
Tamias striatus
5,789 observations
Common Raccoon
Procyon lotor
5,619 observations
Eastern Fox Squirrel
Sciurus niger
5,352 observations
Groundhog
Marmota monax
4,287 observations
Muskrat
Ondatra zibethicus
2,598 observations
American Beaver
Castor canadensis
2,536 observations
American Red Squirrel
Tamiasciurus hudsonicus
2,479 observations
Virginia Opossum
Didelphis virginiana
1,988 observations
Northern Short-tailed Shrew
Blarina brevicauda
1,544 observations
Coyote
Canis latrans
1,391 observations
Striped Skunk
Mephitis mephitis
1,371 observations
Red Fox
Vulpes vulpes
1,177 observations
Domestic Cat
Felis catus
1,096 observations
American Mink
Neogale vison
870 observations
Big Brown Bat
Eptesicus fuscus
629 observations
Eastern Meadow Vole
Microtus pennsylvanicus
490 observations
Eastern Red Bat
Lasiurus borealis
424 observations
Southern Flying Squirrel
Glaucomys volans
312 observations
North American River Otter
Lontra canadensis
256 observations
Bobcat
Lynx rufus
245 observations
Thirteen-lined Ground Squirrel
Ictidomys tridecemlineatus
232 observations
Eastern Mole
Scalopus aquaticus
210 observations
Silver-haired Bat
Lasionycteris noctivagans
163 observations
White-footed Mouse
Peromyscus leucopus
163 observations
Hairy-tailed Mole
Parascalops breweri
159 observations
Tri-coloured Bat
Perimyotis subflavus
147 observations
Masked Shrew
Sorex cinereus
146 observations
American Black Bear
Ursus americanus
119 observations
Long-tailed Weasel
Neogale frenata
115 observations · iNaturalist
Brown Rat
Rattus norvegicus
112 observations
Star-nosed Mole
Condylura cristata
109 observations
Northern Meadow Jumping Mouse
Zapus hudsonius
108 observations
Gray Fox
Urocyon cinereoargenteus
96 observations
House Mouse
Mus musculus
96 observations
Little Brown Bat
Myotis lucifugus
58 observations
American Ermine
Mustela richardsonii
44 observations
Northern Hoary Bat
Lasiurus cinereus
39 observations
Least Weasel
Mustela nivalis
26 observations
Woodland Vole
Microtus pinetorum
24 observations
Domestic Dog
Canis familiaris
24 observations
Northern Myotis
Myotis septentrionalis
23 observations
Eastern Deer Mouse
Peromyscus maniculatus
22 observations
Wild Boar
Sus scrofa
11 observations · iNaturalist
European Rabbit
Oryctolagus cuniculus
8 observations
Indiana Bat
Myotis sodalis
7 observations
Evening Bat
Nycticeius humeralis
6 observations
Eastern Woodland Jumping Mouse
Napaeozapus insignis
5 observations

Built from recent research-grade iNaturalist observations. Identifications are community-sourced and may occasionally be wrong, and the ranking reflects where people record and photograph wildlife, so a species seen often here is not necessarily rare elsewhere. Some plants and animals are only out in certain seasons. Treat this as a lively snapshot of what people are finding, not a formal checklist.

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