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Mule Deer
Odocoileus hemionus
16,207 observations
Wapiti
Cervus canadensis
8,371 observations
Common Golden-mantled Ground Squirrel
Callospermophilus lateralis
6,911 observations
Black-tailed Prairie Dog
Cynomys ludovicianus
6,388 observations
Eastern Fox Squirrel
Sciurus niger
6,352 observations
Yellow-bellied Marmot
Marmota flaviventris
6,039 observations
Moose
Alces alces
5,608 observations
Bighorn Sheep
Ovis canadensis
4,401 observations
American Pika
Ochotona princeps
3,193 observations
Pronghorn
Antilocapra americana
2,825 observations
Coyote
Canis latrans
2,797 observations
Red Fox
Vulpes vulpes
2,510 observations
White-tailed Deer
Odocoileus virginianus
2,105 observations
American Black Bear
Ursus americanus
1,895 observations
Common Raccoon
Procyon lotor
1,590 observations
American Beaver
Castor canadensis
1,505 observations
Invasive
Mountain Goat
Oreamnos americanus
1,467 observations
Muskrat
Ondatra zibethicus
1,304 observations
Fremont's Squirrel
Tamiasciurus fremonti
1,227 observations
Wyoming Ground Squirrel
Urocitellus elegans
1,206 observations
Abert's Squirrel
Sciurus aberti
980 observations
American Bison
Bos bison
943 observations
Desert Cottontail
Sylvilagus audubonii
931 observations
Least Chipmunk
Neotamias minimus
873 observations
Bobcat
Lynx rufus
811 observations
Mountain Cottontail
Sylvilagus nuttallii
796 observations
Rock Squirrel
Otospermophilus variegatus
767 observations
North American Porcupine
Erethizon dorsatum
487 observations
Snowshoe Hare
Lepus americanus
485 observations
Gunnison's Prairie Dog
Cynomys gunnisoni
478 observations
White-tailed Prairie Dog
Cynomys leucurus
419 observations
Long-tailed Weasel
Neogale frenata
393 observations
Black-tailed Jackrabbit
Lepus californicus
369 observations
Striped Skunk
Mephitis mephitis
366 observations
Mountain Lion
Puma concolor
352 observations
Pacific Marten
Martes caurina
347 observations
American Mink
Neogale vison
340 observations
American Badger
Taxidea taxus
302 observations
American Red Squirrel
Tamiasciurus hudsonicus
295 observations
Colorado Chipmunk
Neotamias quadrivittatus
278 observations
Thirteen-lined Ground Squirrel
Ictidomys tridecemlineatus
253 observations
Domestic Horse
Equus caballus
230 observations
Eastern Cottontail
Sylvilagus floridanus
215 observations
Domestic Cat
Felis catus
177 observations
Swift Fox
Vulpes velox
165 observations
Gray Fox
Urocyon cinereoargenteus
159 observations
White-tailed Jackrabbit
Lepus townsendii
150 observations
North American River Otter
Lontra canadensis
109 observations
Western Deer Mouse
Peromyscus sonoriensis
108 observations
House Mouse
Mus musculus
97 observations
Frequently Asked Questions
- The 10 most common mammals in Colorado are:
- Mule Deer (Odocoileus hemionus)
- Wapiti (Cervus canadensis)
- Common Golden-mantled Ground Squirrel (Callospermophilus lateralis)
- Black-tailed Prairie Dog (Cynomys ludovicianus)
- Eastern Fox Squirrel (Sciurus niger)
- Yellow-bellied Marmot (Marmota flaviventris)
- Moose (Alces alces)
- Bighorn Sheep (Ovis canadensis)
- American Pika (Ochotona princeps)
- Pronghorn (Antilocapra americana)
- The most observed mammal in Colorado is Mule Deer (Odocoileus hemionus), with 16,207 recorded observations.
- Some of the most commonly observed invasive mammals in Colorado include:
- Mountain Goat (Oreamnos americanus)
- Some of the most commonly observed native mammals in Colorado include:
- Mule Deer (Odocoileus hemionus)
- Bighorn Sheep (Ovis canadensis)
- American Pika (Ochotona princeps)
- Pronghorn (Antilocapra americana)
- Least Chipmunk (Neotamias minimus)