Mammals of Montana
The mammals most often spotted in Montana, ranked by recent research-grade observations.
69,790
recent observations
50
species listed
50
mammals
Naturalists have logged 69,790 research-grade observations across the 50 most-recorded species in Montana. The most frequently seen is the American Bison, with 11,112 recorded sightings.
Rarer finds confirmed in Montana include Grizzly Bear, Gray Wolf and Bobcat - uncommon enough that a sighting is worth logging.
Most-observed mammals in Montana
American Bison
Bos bison
11,112 observations · iNaturalist
Wapiti
Cervus canadensis
7,022 observations
American Black Bear
Ursus americanus
4,151 observations
Mule Deer
Odocoileus hemionus
3,952 observations
Pronghorn
Antilocapra americana
3,722 observations
Bighorn Sheep
Ovis canadensis
3,453 observations
White-tailed Deer
Odocoileus virginianus
3,261 observations
Moose
Alces alces
2,832 observations
Brown Bear
Ursus arctos
2,670 observations
Mountain Goat
Oreamnos americanus
2,562 observations
American Red Squirrel
Tamiasciurus hudsonicus
2,488 observations
Columbian Ground Squirrel
Urocitellus columbianus
2,450 observations
Common Golden-mantled Ground Squirrel
Callospermophilus lateralis
2,239 observations
Coyote
Canis latrans
2,112 observations
Yellow-bellied Marmot
Marmota flaviventris
1,872 observations
Uinta Ground Squirrel
Urocitellus armatus
1,560 observations
Gray Wolf
Canis lupus
1,420 observations
Red Fox
Vulpes vulpes
1,216 observations
Hoary Marmot
Marmota caligata
999 observations
Black-tailed Prairie Dog
Cynomys ludovicianus
973 observations
American Pika
Ochotona princeps
711 observations
American Beaver
Castor canadensis
615 observations
Mountain Cottontail
Sylvilagus nuttallii
614 observations
Eastern Fox Squirrel
Sciurus niger
565 observations
Muskrat
Ondatra zibethicus
561 observations
Snowshoe Hare
Lepus americanus
506 observations
Least Chipmunk
Neotamias minimus
450 observations
American Badger
Taxidea taxus
401 observations
Richardson's Ground Squirrel
Urocitellus richardsonii
358 observations
North American Porcupine
Erethizon dorsatum
316 observations
Yellow-pine Chipmunk
Neotamias amoenus
307 observations
Common Raccoon
Procyon lotor
267 observations
Mountain Lion
Puma concolor
193 observations
Striped Skunk
Mephitis mephitis
184 observations
North American River Otter
Lontra canadensis
177 observations
Long-tailed Weasel
Neogale frenata
174 observations · iNaturalist
American Mink
Neogale vison
142 observations
Western Deer Mouse
Peromyscus sonoriensis
138 observations
White-tailed Jackrabbit
Lepus townsendii
130 observations
Uinta Chipmunk
Neotamias umbrinus
118 observations
Bobcat
Lynx rufus
108 observations
Pacific Marten
Martes caurina
108 observations
Northern Pocket Gopher
Thomomys talpoides
97 observations
Desert Cottontail
Sylvilagus audubonii
90 observations
Domestic Horse
Equus caballus
89 observations · iNaturalist
Domestic Cat
Felis catus
79 observations
Bushy-tailed Woodrat
Neotoma cinerea
68 observations
European Rabbit
Oryctolagus cuniculus
59 observations · iNaturalist
Red-tailed Chipmunk
Neotamias ruficaudus
51 observations
American Ermine
Mustela richardsonii
48 observations
Mammals in nearby places
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