Mammals of Montana
The mammals most often spotted in Montana, ranked by recent research-grade observations.
68,038
recent observations
50
species listed
50
mammals
Naturalists have logged 68,038 research-grade observations across the 50 most-recorded species in Montana. The most frequently seen is the American Bison, with 10,833 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
10,833 observations · iNaturalist
Wapiti
Cervus canadensis
6,833 observations
American Black Bear
Ursus americanus
4,049 observations
Mule Deer
Odocoileus hemionus
3,829 observations
Pronghorn
Antilocapra americana
3,598 observations
Bighorn Sheep
Ovis canadensis
3,391 observations
White-tailed Deer
Odocoileus virginianus
3,182 observations
Moose
Alces alces
2,767 observations
Brown Bear
Ursus arctos
2,612 observations
Mountain Goat
Oreamnos americanus
2,499 observations
Columbian Ground Squirrel
Urocitellus columbianus
2,406 observations
American Red Squirrel
Tamiasciurus hudsonicus
2,399 observations
Common Golden-mantled Ground Squirrel
Callospermophilus lateralis
2,172 observations
Coyote
Canis latrans
2,060 observations
Yellow-bellied Marmot
Marmota flaviventris
1,833 observations
Uinta Ground Squirrel
Urocitellus armatus
1,533 observations
Gray Wolf
Canis lupus
1,400 observations
Red Fox
Vulpes vulpes
1,191 observations
Hoary Marmot
Marmota caligata
975 observations
Black-tailed Prairie Dog
Cynomys ludovicianus
960 observations
American Pika
Ochotona princeps
684 observations
American Beaver
Castor canadensis
606 observations
Mountain Cottontail
Sylvilagus nuttallii
594 observations
Eastern Fox Squirrel
Sciurus niger
559 observations
Muskrat
Ondatra zibethicus
541 observations
Snowshoe Hare
Lepus americanus
497 observations
Least Chipmunk
Neotamias minimus
432 observations
American Badger
Taxidea taxus
394 observations
Richardson's Ground Squirrel
Urocitellus richardsonii
339 observations
North American Porcupine
Erethizon dorsatum
311 observations
Yellow-pine Chipmunk
Neotamias amoenus
303 observations
Common Raccoon
Procyon lotor
264 observations
Mountain Lion
Puma concolor
191 observations
Striped Skunk
Mephitis mephitis
175 observations
North American River Otter
Lontra canadensis
173 observations
Long-tailed Weasel
Neogale frenata
168 observations · iNaturalist
American Mink
Neogale vison
138 observations
Western Deer Mouse
Peromyscus sonoriensis
131 observations
White-tailed Jackrabbit
Lepus townsendii
127 observations
Uinta Chipmunk
Neotamias umbrinus
113 observations
Bobcat
Lynx rufus
108 observations
Pacific Marten
Martes caurina
106 observations
Northern Pocket Gopher
Thomomys talpoides
92 observations
Domestic Horse
Equus caballus
88 observations · iNaturalist
Desert Cottontail
Sylvilagus audubonii
84 observations
Domestic Cat
Felis catus
79 observations
Bushy-tailed Woodrat
Neotoma cinerea
67 observations
European Rabbit
Oryctolagus cuniculus
58 observations · iNaturalist
Red-tailed Chipmunk
Neotamias ruficaudus
49 observations
American Ermine
Mustela richardsonii
45 observations
Mammals in nearby places
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