| Common
Name |
Scientific
Name |
Remarks |
| Insectivores |
| Hayden's
Shrew |
Sorex
haydeni |
Common
in park riparian areas |
| Marriam
Shrew |
Sorex
merriami |
No
recorded observation; possible to occur |
| Dwarf
Shrew |
Sorex
nanus |
No
recorded observation; likely to occur |
| Least
Shrew |
Cryptotis
parva |
Rare
in park grasslands |
| Bats |
| Little
Brown Myotis |
Myotis
lucifugus |
Common
in the park |
| Western
Small-footed Myotis |
Myotis
ciliolabrum |
Rare
in park |
| Long-legged
Myotis |
Myotis
volans |
Uncommon
in park |
| Northern
Myotis |
Myotis
septentrionalis |
No
recorded observation in park, possible to occur |
| Long-eared
Myotis |
Myotis
evotis |
Rare
in park |
| Fringe-tailed
Myotis |
Myotis
thysanodes |
Uncommon
in park
more
information... |
| Townsend's
Big-eared Bat |
Corynorhinus
townsendi |
Uncommon
in park |
| Eastern
Red Bat |
Lasiurus
borealis |
Rare
in park |
| Hoary
Bat |
Lasiurus
cinereus |
Uncommon
in park |
| Silver-haired
Bat |
Lasionycteris
noctivarans |
Uncommon
in park |
| Big
Brown Bat |
Eptesicus
fuscus |
Uncommon
in park |
| Carnivores |
| Black
Bear |
Ursus
americanus |
Extirpated
from park, 1968 last in Black Hills
more
information... |
| Grizzly
Bear |
Ursus
horribilis |
Extirpated
from park, 1894 last in Black Hills |
| Common
Raccoon |
Procyon
lotor |
Occasionally
seen in the park |
| Least
Weasel |
Mutela
nivalis |
No
recorded observation; possible to occur |
| Ermine |
Mustela
erminea |
Occasionally
seen in park |
| Longtail
Weasel |
Mustela
frenata |
Rare
in park |
| Black-footed
Ferret |
Mustela
nigripes |
Extirpated
from park, last observed 1971
more
information... |
| Mink |
Mustela
vison |
No
recorded observation; possible to occur |
| Striped
Skunk |
Mephitis
mephitis |
Occasionally
seen in park |
| Eastern
Spotted Skunk |
Spilogale
putorius |
Rare
in park; last observed in 1951 |
| American
Badger |
Taxidae
taxus |
Occasionally
seen in prairie dog towns |
| Coyote |
Canis
latrans |
Common
in park |
| Grey
Wolf |
Canis
lupus |
Extirpated
from park; 1934 last in Black Hills
more
information... |
| American
Marten |
Martes
americana |
No
recorded observation; do not occur in park
more
information... |
| Swift
Fox |
Vulpes
velox |
No
recorded observation; unlikely to occur
more
information... |
| Common
Gray Fox |
Urocyon
cinereoargenteus |
No
recorded observation; unlikely to occur |
| Red
Fox |
Vulpes
vulpes |
No
recorded observation; possible to occur |
| Mountain
Lion |
Felis
concolor |
Occasionally
seen in park
more
information... |
| Bobcat |
Felis
rufus |
Uncommon
in park; rarely observed |
| Rodents |
| Yellowbelly
Marmot |
Marmota
flaviventrus |
Occasional
sightings in rocky areas |
| Black-tailed
Prairie Dog |
Cynomys
ludovicianus |
Abundant
in park |
| Least
Chipmunk |
Tamias
minimus |
Common
in rocky outcrops and near dead snags |
| Red
Squirrel |
Tamiasciurus
hudsonicus |
Common
in park woodlands |
| Eastern
Fox Squirrel |
Sciurus
niger |
No
recorded observation; possible to occur |
| Thirteen-lined
Ground Squirrel |
Spermophilus
tridencemlineatus |
Frequently
seen near prairie dog towns |
| Northern
Flying Squirrel |
Glaucomys
sabrinus |
Uncommon
in park; rarely observed |
| Northern
Pocket Golpher |
Thomomys
talpoides |
Common
in park grasslands |
| Olive-backed
PocketMouse |
Perognathus
fasciatus |
Rare
in park grasslands |
| Silky
Pocket Mouse |
Perognathus
flavus |
No
recorded observation; possible to occur |
| Hispid
Pocket Mouse |
Chaetodipus
hispidus |
Rare
in park; arid and rocky habitats |
| Ord's
Kangaroo Rat |
Dipodomys
ordi |
No
recorded observation; possible to occur |
| American
Beaver |
Castor
canadensis |
No
recorded observation; possible to occur |
| Plains
Harvest Mouse |
Reithrodontomys
montanus |
No
recorded observation; possible to occur |
| Western
Harvest Mouse |
Reithrodontomys
megalotis |
Uncommon
in park grasslands |
| Deer
Mouse |
Peromyscus
maniculatus |
Abundant
throughout the park |
| White-footed
Mouse |
Peromyscus
leucopus |
Abundant
in moist draws and riparian areas |
| Northern
Grasshopper Mouse |
Onychomys
leucogaster |
No
recorded observation; likely to occur |
| Bushy-tailed
Woodrat |
Neotoma
cinerea |
Common
in park rocky areas, near cave entrance |
| Meadow
Vole |
Microtus
pennsylvanicus |
Common
along riparian areas |
| Prairie
Vole |
Microtus
ochrogaster |
Common
in grasslands; cyclic population |
| Southern
Red-Backed Vole |
Clethrionomys
gapperi |
Common
in aspen and moist pine habitat |
| Long-tailed
Vole |
Microtus
longicaudus |
No
recorded observation; possible to occur |
| Muskrat |
Ondartra
zibethica |
Rare
in park due to unsuitable habitat |
| Norway
Rat |
Rattus
norvegicus |
No
observations; exotic possible to occur |
| House
Mouse |
Mus
musculus |
Rare
in park; exotic last observed in 1968 |
| Meadow
Jumping Mouse |
Zapus
hudsonius |
Uncommon
in moist draws and riparian areas |
| Porcupine |
Erethizon
dorsatum |
Common,
frequently seen at night |
| Hares
& Rabbits |
| Whitetail
Jackrabbit |
Lepus
townsendi |
Rare
in park grasslands |
| Black-tailed
Jackrabbit |
Lepus
californicus |
No
recorded observation; possible to occur |
| Eastern
Cottontail |
Sylvilagus
floridanus |
Common
in woodlands near visitor center |
| Mountain
Cottontail |
Sylvilagus
nuttalli |
No
recorded observation, possible above 4,500 feet |
| Desert
Cottontail |
Sylvilagus
auduboni |
Common
in arid grasslands and prairie dog towns |
| Even-toed
Hoofed Mammals |
| Elk |
Cervus
elephus |
Abundant,
difficult to observe, reintroduced in 1914 |
| Mule
Deer |
Odocoileus
hemionus |
Common
in park, often observed |
| Whitetail
Deer |
Odocoileus
virginianus |
Common
in park, often observed |
| Pronghorn
("Antelope") |
Antilocapra
americana |
Uncommon
in park, reintroduced in 1914 |
| Bison
("Buffalo") |
Bison
bison |
Common
in park, reintroduced in 1913 |
