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White-tailed Deer
Odocoileus virginianus
2,721 observations
Eastern Fox Squirrel
Sciurus niger
1,346 observations
Eastern Cottontail
Sylvilagus floridanus
1,282 observations
Eastern Chipmunk
Tamias striatus
799 observations
Common Raccoon
Procyon lotor
794 observations
Eastern Gray Squirrel
Sciurus carolinensis
739 observations
Groundhog
Marmota monax
462 observations
American Beaver
Castor canadensis
350 observations
Red Fox
Vulpes vulpes
347 observations
Virginia Opossum
Didelphis virginiana
334 observations
Muskrat
Ondatra zibethicus
249 observations
Thirteen-lined Ground Squirrel
Ictidomys tridecemlineatus
169 observations
Coyote
Canis latrans
158 observations
American Mink
Neogale vison
140 observations
Domestic Cat
Felis catus
116 observations
Northern Short-tailed Shrew
Blarina brevicauda
109 observations
Striped Skunk
Mephitis mephitis
97 observations
Big Brown Bat
Eptesicus fuscus
86 observations
Eastern Mole
Scalopus aquaticus
75 observations
American Bison
Bos bison
58 observations
Bobcat
Lynx rufus
57 observations
North American River Otter
Lontra canadensis
55 observations
American Badger
Taxidea taxus
36 observations
American Red Squirrel
Tamiasciurus hudsonicus
35 observations
Western Meadow Vole
Microtus drummondii
34 observations
Masked Shrew
Sorex cinereus
26 observations
White-footed Mouse
Peromyscus leucopus
24 observations
Plains Pocket Gopher
Geomys bursarius
21 observations
House Mouse
Mus musculus
17 observations
Eastern Red Bat
Lasiurus borealis
16 observations
Eastern Deermouse
Peromyscus maniculatus
10 observations
Tri-coloured Bat
Perimyotis subflavus
10 observations
Domestic Dog
Canis familiaris
8 observations
Least Weasel
Mustela nivalis
8 observations
Little Brown Bat
Myotis lucifugus
7 observations
Northern Hoary Bat
Lasiurus cinereus
7 observations
American Ermine
Mustela richardsonii
7 observations
Western Harvest Mouse
Reithrodontomys megalotis
6 observations
White-tailed Jackrabbit
Lepus townsendii
5 observations
Prairie Vole
Microtus ochrogaster
5 observations
Silver-haired Bat
Lasionycteris noctivagans
4 observations
Brown Rat
Rattus norvegicus
4 observations
Southern Flying Squirrel
Glaucomys volans
4 observations
American Black Bear
Ursus americanus
3 observations
Moose
Alces alces
3 observations
Evening Bat
Nycticeius humeralis
2 observations
Gray Fox
Urocyon cinereoargenteus
2 observations
Wild Boar
Sus scrofa
2 observations
Northern Grasshopper Mouse
Onychomys leucogaster
2 observations
Domestic Cattle
Bos taurus
2 observations
Frequently Asked Questions
- The 10 most common mammals in Iowa are:
- White-tailed Deer (Odocoileus virginianus)
- Eastern Fox Squirrel (Sciurus niger)
- Eastern Cottontail (Sylvilagus floridanus)
- Eastern Chipmunk (Tamias striatus)
- Common Raccoon (Procyon lotor)
- Eastern Gray Squirrel (Sciurus carolinensis)
- Groundhog (Marmota monax)
- American Beaver (Castor canadensis)
- Red Fox (Vulpes vulpes)
- Virginia Opossum (Didelphis virginiana)
- The most observed mammal in Iowa is White-tailed Deer (Odocoileus virginianus), with 2,721 recorded observations.