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 ↓

Taxonomy
« Back To Placental Mammals Infraclass Placentalia
- Primates, Rodents, and Allies Superorder Euarchontoglires
  - 6 Lagomorphs Order Lagomorpha
  - 37 Rodents Order Rodentia

Prairie Dogs ¹
Cynomys

Mountain Cottontail ²
Sylvilagus nuttallii

Eastern Cottontail ³
Sylvilagus floridanus

Black-tailed Jackrabbit ⁴
Lepus californicus

Snowshoe Hare ⁵
Lepus americanus

White-tailed Jackrabbit ⁶
Lepus townsendii

American Pika ⁷
Ochotona princeps

American Beaver ⁸
Castor canadensis

Meadow Jumping Mouse ⁹
Zapus hudsonius

Western Jumping Mouse
Zapus princeps

North American Porcupine ¹⁰
Erethizon dorsatum

Plains Pocket Gopher ¹¹
Geomys bursarius

Northern Pocket Gopher ¹²
Thomomys talpoides

Hispid Pocket Mouse ¹³
Chaetodipus hispidus

Ord's Kangaroo Rat ¹⁴
Dipodomys ordii

Plains Pocket Mouse
Perognathus flavescens

Olive-backed Pocket Mouse
Perognathus fasciatus

Silky Pocket Mouse ¹³
Perognathus flavus

Long-tailed Vole
Microtus longicaudus

Meadow Vole
Microtus pennsylvanicus

Montane Vole ¹⁵
Microtus montanus

Prairie Vole
Microtus ochrogaster

Northern Rock Mouse
Peromyscus nasutus

Brush Mouse ¹³
Peromyscus boylii

Deer Mouse ¹⁶
Peromyscus maniculatus

Pinyon Mouse ¹⁷
Peromyscus truei

Western Harvest Mouse ¹⁸
Reithrodontomys megalotis

Plains Harvest Mouse ¹⁹
Reithrodontomys montanus

House Mouse ²⁰
Mus musculus

Mexican Woodrat ¹³
Neotoma mexicana

Bushy-tailed Wood Rat
Neotoma cinerea

Northern Grasshopper Mouse ²¹
Onychomys leucogaster

Muskrat ²²
Ondatra zibethicus

Sagebrush Vole ²³
Lemmiscus curtatus

Abert's Squirrel ²⁴
Sciurus aberti

Fox Squirrel ²⁵
Sciurus niger

Yellow-bellied Marmot ²⁶
Marmota flaviventris

White-tailed Prairie Dog ²⁷
Cynomys leucurus

Black-tailed Prairie Dog ¹
Cynomys ludovicianus

Uinta Chipmunk ²⁸
Tamias umbrinus

Least Chipmunk ¹⁶
Tamias minimus

Colorado Chipmunk ²⁹
Tamias quadrivittatus

American Red Squirrel ³⁰
Tamiasciurus hudsonicus

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

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Wildlife of Boulder County

Prairie Dogs 1 Cynomys

Mountain Cottontail 2 Sylvilagus nuttallii

Eastern Cottontail 3 Sylvilagus floridanus

Black-tailed Jackrabbit 4 Lepus californicus

Snowshoe Hare 5 Lepus americanus

White-tailed Jackrabbit 6 Lepus townsendii

American Pika 7 Ochotona princeps

American Beaver 8 Castor canadensis

Meadow Jumping Mouse 9 Zapus hudsonius

Western Jumping Mouse Zapus princeps

North American Porcupine 10 Erethizon dorsatum

Plains Pocket Gopher 11 Geomys bursarius

Northern Pocket Gopher 12 Thomomys talpoides

Hispid Pocket Mouse 13 Chaetodipus hispidus

Ord's Kangaroo Rat 14 Dipodomys ordii

Plains Pocket Mouse Perognathus flavescens

Olive-backed Pocket Mouse Perognathus fasciatus

Silky Pocket Mouse 13 Perognathus flavus

Long-tailed Vole Microtus longicaudus

Meadow Vole Microtus pennsylvanicus

Montane Vole 15 Microtus montanus

Prairie Vole Microtus ochrogaster

Northern Rock Mouse Peromyscus nasutus

Brush Mouse 13 Peromyscus boylii

Deer Mouse 16 Peromyscus maniculatus

Pinyon Mouse 17 Peromyscus truei

Western Harvest Mouse 18 Reithrodontomys megalotis

Plains Harvest Mouse 19 Reithrodontomys montanus

House Mouse 20 Mus musculus

Mexican Woodrat 13 Neotoma mexicana

Bushy-tailed Wood Rat Neotoma cinerea

Northern Grasshopper Mouse 21 Onychomys leucogaster

Muskrat 22 Ondatra zibethicus

Sagebrush Vole 23 Lemmiscus curtatus

Abert's Squirrel 24 Sciurus aberti

Fox Squirrel 25 Sciurus niger

Yellow-bellied Marmot 26 Marmota flaviventris

White-tailed Prairie Dog 27 Cynomys leucurus

Black-tailed Prairie Dog 1 Cynomys ludovicianus

Uinta Chipmunk 28 Tamias umbrinus

Least Chipmunk 16 Tamias minimus

Colorado Chipmunk 29 Tamias quadrivittatus

American Red Squirrel 30 Tamiasciurus hudsonicus