Mammals of Denver, Colorado
The mammals most often spotted near Denver, ranked by recent research-grade observations.
23,056
recent observations
50
species listed
50
mammals
Naturalists have logged 23,056 research-grade observations across the 50 most-recorded species near Denver. The most frequently seen is the Mule Deer, with 4,511 recorded sightings.
Rarer finds confirmed near Denver include Bobcat and Black-footed Ferret - uncommon enough that a sighting is worth logging.
Most-observed mammals near Denver
Mule Deer
Odocoileus hemionus
4,511 observations
Black-tailed Prairie Dog
Cynomys ludovicianus
4,007 observations
Eastern Fox Squirrel
Sciurus niger
3,524 observations
Coyote
Canis latrans
1,429 observations
White-tailed Deer
Odocoileus virginianus
1,065 observations
Wapiti
Cervus canadensis
949 observations
American Bison
Bos bison
887 observations · iNaturalist
Common Raccoon
Procyon lotor
723 observations
Red Fox
Vulpes vulpes
668 observations
Muskrat
Ondatra zibethicus
660 observations
Pronghorn
Antilocapra americana
482 observations
American Beaver
Castor canadensis
478 observations
Desert Cottontail
Sylvilagus audubonii
417 observations
Bighorn Sheep
Ovis canadensis
365 observations
American Black Bear
Ursus americanus
351 observations
Abert's Squirrel
Sciurus aberti
339 observations
Bobcat
Lynx rufus
283 observations
Common Golden-mantled Ground Squirrel
Callospermophilus lateralis
276 observations
Mountain Cottontail
Sylvilagus nuttallii
243 observations
Fremont's Squirrel
Tamiasciurus fremonti
142 observations
Moose
Alces alces
130 observations
American Mink
Neogale vison
110 observations
Eastern Cottontail
Sylvilagus floridanus
101 observations
Striped Skunk
Mephitis mephitis
96 observations
Mountain Lion
Puma concolor
79 observations
Rock Squirrel
Otospermophilus variegatus
74 observations
House Mouse
Mus musculus
65 observations
Yellow-bellied Marmot
Marmota flaviventris
63 observations
Domestic Cat
Felis catus
61 observations
Least Chipmunk
Neotamias minimus
57 observations
Colorado Chipmunk
Neotamias quadrivittatus
41 observations
American Badger
Taxidea taxus
37 observations
Big Brown Bat
Eptesicus fuscus
36 observations
Brown Rat
Rattus norvegicus
36 observations
North American Porcupine
Erethizon dorsatum
35 observations
Western Deer Mouse
Peromyscus sonoriensis
31 observations
Western Meadow Vole
Microtus drummondii
29 observations
Black-footed Ferret
Mustela nigripes
25 observations
Gray Fox
Urocyon cinereoargenteus
22 observations
Long-tailed Weasel
Neogale frenata
19 observations · iNaturalist
Ringtail
Bassariscus astutus
18 observations
Thirteen-lined Ground Squirrel
Ictidomys tridecemlineatus
17 observations
American Red Squirrel
Tamiasciurus hudsonicus
15 observations
Northern Hoary Bat
Lasiurus cinereus
14 observations
Western Spotted Skunk
Spilogale gracilis
9 observations
Little Brown Bat
Myotis lucifugus
8 observations
Black-tailed Jackrabbit
Lepus californicus
8 observations
European Rabbit
Oryctolagus cuniculus
8 observations · iNaturalist
Western Harvest Mouse
Reithrodontomys megalotis
7 observations
Silver-haired Bat
Lasionycteris noctivagans
6 observations
Mammals in nearby places
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