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White-tailed Deer
Odocoileus virginianus
2,644 observations
Eastern Fox Squirrel
Sciurus niger
1,316 observations
Eastern Cottontail
Sylvilagus floridanus
1,239 observations
Common Raccoon
Procyon lotor
779 observations
Eastern Chipmunk
Tamias striatus
753 observations
Eastern Gray Squirrel
Sciurus carolinensis
716 observations
Groundhog
Marmota monax
440 observations
American Beaver
Castor canadensis
345 observations
Red Fox
Vulpes vulpes
334 observations
Virginia Opossum
Didelphis virginiana
329 observations
Muskrat
Ondatra zibethicus
247 observations
Thirteen-lined Ground Squirrel
Ictidomys tridecemlineatus
163 observations
Coyote
Canis latrans
155 observations
American Mink
Neogale vison
135 observations
Domestic Cat
Felis catus
114 observations
Northern Short-tailed Shrew
Blarina brevicauda
107 observations
Striped Skunk
Mephitis mephitis
94 observations
Big Brown Bat
Eptesicus fuscus
83 observations
Eastern Mole
Scalopus aquaticus
72 observations
Bobcat
Lynx rufus
57 observations
American Bison
Bos bison
56 observations
North American River Otter
Lontra canadensis
53 observations
American Badger
Taxidea taxus
35 observations
American Red Squirrel
Tamiasciurus hudsonicus
34 observations
Western Meadow Vole
Microtus drummondii
34 observations
Masked Shrew
Sorex cinereus
25 observations
White-footed Mouse
Peromyscus leucopus
24 observations
Plains Pocket Gopher
Geomys bursarius
20 observations
House Mouse
Mus musculus
17 observations
Eastern Red Bat
Lasiurus borealis
15 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
Brown Rat
Rattus norvegicus
4 observations
Southern Flying Squirrel
Glaucomys volans
4 observations
Silver-haired Bat
Lasionycteris noctivagans
3 observations
American Black Bear
Ursus americanus
3 observations
Moose
Alces alces
3 observations
Evening Bat
Nycticeius humeralis
2 observations
Wild Boar
Sus scrofa
2 observations
Northern Grasshopper Mouse
Onychomys leucogaster
2 observations
Domestic Cattle
Bos taurus
2 observations
Long-tailed Weasel
Neogale frenata
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)
- Common Raccoon (Procyon lotor)
- Eastern Chipmunk (Tamias striatus)
- 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 2,644 recorded observations.