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Wildlife of Boulder County

Boulder County is comprised of 740 square miles of land nestled along the front range of Colorado just 30 miles northwest of Denver. Its proximity to the mountains, diverse landscapes, and various designated open spaces make the county ideal for observing local and even migrating wildlife. ...more ↓

Prairie Dogs 1
Cynomys
Long-legged Myotis
Myotis volans
Little Brown Bat 2
Myotis lucifugus
Fringed Myotis 3
Myotis thysanodes
Miller's Myotis 4
Myotis evotis
Big Brown Bat 5
Eptesicus fuscus
Western Red Bat 5
Lasiurus blossevillii
Hoary Bat 6
Lasiurus cinereus
Silver-haired Bat 7
Lasionycteris noctivagans
American Black Bear 8
Ursus americanus
Common Raccoon 9
Procyon lotor
Ringtail 10
Bassariscus astutus
American Badger 11
Taxidea taxus
American Marten 12
Martes americana
Short-tailed Weasel 13
Mustela erminea
Black-footed Ferret 14
Mustela nigripes
Long-tailed Weasel 15
Mustela frenata
Striped Skunk 16
Mephitis mephitis
Eastern Spotted Skunk 17
Spilogale putorius
Canada Lynx 18
Lynx canadensis
Bobcat 19
Lynx rufus
Mountain Lion 20
Puma concolor
Coyote 21
Canis latrans
Swift Fox 22
Vulpes velox
Red Fox 23
Vulpes vulpes
Gray Fox 24
Urocyon cinereoargenteus
Cervus 25
Mule Deer 26
Odocoileus hemionus
White-tailed Deer 27
Odocoileus virginianus
Bighorn Sheep 28
Ovis canadensis
Pronghorn 29
Antilocapra americana
Mountain Cottontail 30
Sylvilagus nuttallii
Eastern Cottontail 31
Sylvilagus floridanus
Black-tailed Jackrabbit 32
Lepus californicus
Snowshoe Hare 33
Lepus americanus
White-tailed Jackrabbit 22
Lepus townsendii
American Pika 34
Ochotona princeps
American Beaver 35
Castor canadensis
Meadow Jumping Mouse 36
Zapus hudsonius
Western Jumping Mouse
Zapus princeps
North American Porcupine 37
Erethizon dorsatum
Plains Pocket Gopher 38
Geomys bursarius
Northern Pocket Gopher 39
Thomomys talpoides
Hispid Pocket Mouse 5
Chaetodipus hispidus
Ord's Kangaroo Rat 40
Dipodomys ordii
Plains Pocket Mouse
Perognathus flavescens
Olive-backed Pocket Mouse
Perognathus fasciatus
Silky Pocket Mouse 5
Perognathus flavus
Long-tailed Vole
Microtus longicaudus
Meadow Vole
Microtus pennsylvanicus
Montane Vole 41
Microtus montanus
Prairie Vole
Microtus ochrogaster
Northern Rock Mouse
Peromyscus nasutus
Brush Mouse 5
Peromyscus boylii
Deer Mouse 42
Peromyscus maniculatus
Pinyon Mouse 43
Peromyscus truei
Western Harvest Mouse 44
Reithrodontomys megalotis
Plains Harvest Mouse 45
Reithrodontomys montanus
House Mouse 46
Mus musculus
Mexican Woodrat 5
Neotoma mexicana
Bushy-tailed Wood Rat
Neotoma cinerea
Northern Grasshopper Mouse 47
Onychomys leucogaster
Muskrat 48
Ondatra zibethicus
Sagebrush Vole 49
Lemmiscus curtatus
Abert's Squirrel 50
Sciurus aberti
Fox Squirrel 51
Sciurus niger
Yellow-bellied Marmot 52
Marmota flaviventris
White-tailed Prairie Dog 53
Cynomys leucurus
Black-tailed Prairie Dog 1
Cynomys ludovicianus
Uinta Chipmunk 54
Tamias umbrinus
Least Chipmunk 42
Tamias minimus
Colorado Chipmunk 55
Tamias quadrivittatus
American Red Squirrel 56
Tamiasciurus hudsonicus
American Water Shrew 57
Sorex palustris
Dwarf Shrew
Sorex nanus
American Pygmy Shrew 58
Sorex hoyi
Dusky Shrew 49
Sorex monticolus
Merriam's Shrew 49
Sorex merriami
North American Least Shrew 38
Cryptotis parva
Western Spotted Skunk
Spilogale gracilis

Edited by srupinsky, Melanie Hill, Deborah H Price, and Dave Sutherland, some rights reserved (CC BY-SA)

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