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Mammals of Idaho

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

45,062
recent observations
50
species listed
50
mammals

Naturalists have logged 45,062 research-grade observations across the 50 most-recorded species in Idaho. The most frequently seen is the Mule Deer, with 4,307 recorded sightings.

Rarer finds confirmed in Idaho include Grizzly Bear, Gray Wolf and Bobcat - uncommon enough that a sighting is worth logging.

Grizzly BearGray WolfBobcat

Most-observed mammals in Idaho

Mule Deer
Odocoileus hemionus
4,307 observations
White-tailed Deer
Odocoileus virginianus
3,666 observations
Eastern Fox Squirrel
Sciurus niger
3,215 observations
Moose
Alces alces
3,001 observations
Columbian Ground Squirrel
Urocitellus columbianus
2,965 observations
Bighorn Sheep
Ovis canadensis
2,336 observations
American Red Squirrel
Tamiasciurus hudsonicus
2,321 observations
Mountain Goat
Oreamnos americanus
2,151 observations
Pronghorn
Antilocapra americana
1,812 observations
Common Golden-mantled Ground Squirrel
Callospermophilus lateralis
1,683 observations
American Black Bear
Ursus americanus
1,610 observations
Wapiti
Cervus canadensis
1,574 observations
Yellow-bellied Marmot
Marmota flaviventris
1,426 observations
American Beaver
Castor canadensis
1,172 observations
Hoary Marmot
Marmota caligata
1,013 observations
Red Fox
Vulpes vulpes
872 observations
Coyote
Canis latrans
807 observations
Mountain Cottontail
Sylvilagus nuttallii
804 observations
Muskrat
Ondatra zibethicus
766 observations
Brown Bear
Ursus arctos
737 observations
American Pika
Ochotona princeps
534 observations
Snowshoe Hare
Lepus americanus
501 observations
American Bison
Bos bison
491 observations · iNaturalist
Common Raccoon
Procyon lotor
463 observations
North American Porcupine
Erethizon dorsatum
413 observations
Striped Skunk
Mephitis mephitis
350 observations
American Mink
Neogale vison
304 observations
Yellow-pine Chipmunk
Neotamias amoenus
295 observations
Uinta Ground Squirrel
Urocitellus armatus
290 observations
American Badger
Taxidea taxus
287 observations
Gray Wolf
Canis lupus
283 observations
Least Chipmunk
Neotamias minimus
252 observations
Domestic Cat
Felis catus
235 observations
Mountain Lion
Puma concolor
232 observations
Richardson's Ground Squirrel
Urocitellus richardsonii
224 observations
Western Deer Mouse
Peromyscus sonoriensis
193 observations
Long-tailed Weasel
Neogale frenata
180 observations · iNaturalist
North American River Otter
Lontra canadensis
176 observations
Bobcat
Lynx rufus
141 observations
European Rabbit
Oryctolagus cuniculus
119 observations
Crater Chipmunk
Neotamias cratericus
119 observations
Snake River Plains Ground Squirrel
Urocitellus idahoensis
114 observations
Northern Pocket Gopher
Thomomys talpoides
94 observations
Pacific Marten
Martes caurina
86 observations
Black-tailed Jackrabbit
Lepus californicus
84 observations
Bushy-tailed Woodrat
Neotoma cinerea
83 observations
Red-tailed Chipmunk
Neotamias ruficaudus
83 observations
Idaho Ground Squirrel
Urocitellus brunneus
73 observations · iNaturalist
House Mouse
Mus musculus
63 observations
Eastern Gray Squirrel
Sciurus carolinensis
62 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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