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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 ↓

Downy Woodpecker 1
Picoides pubescens
Hairy Woodpecker 2
Picoides villosus
Lewis's Woodpecker 3
Melanerpes lewis
Red-headed Woodpecker 4
Melanerpes erythrocephalus
Northern Flicker 5
Colaptes auratus
Williamson's Sapsucker 6
Sphyrapicus thyroideus
Red-naped Sapsucker 7
Sphyrapicus nuchalis
Common Nighthawk 8
Chordeiles minor
Common Poorwill 9
Phalaenoptilus nuttallii
Eastern Screech-Owl 10
Megascops asio
Burrowing Owl 11
Athene cunicularia
Great Horned Owl 12
Bubo virginianus
Long-eared Owl 6
Asio otus
Short-eared Owl 13
Asio flammeus
Northern Saw-whet Owl 13
Aegolius acadicus
Barn Owl 14
Tyto alba
Boreal Chorus Frog 15
Pseudacris maculata
Plains Spadefoot
Spea bombifrons
Western Tiger Salamander 16
Ambystoma mavortium
North American Racer 17
Coluber constrictor
Yellowbelly Racer 18
Coluber constrictor flaviventris
Lined Snake 19
Tropidoclonion lineatum
Plains Garter Snake 20
Thamnophis radix
Western Terrestrial Garter Snake 15
Thamnophis elegans
Wandering Garter Snake 21
Thamnophis elegans vagrans
Gopher Snake 15
Pituophis catenifer
Northern Watersnake 22
Nerodia sipedon
Northern Water Snake 23
Nerodia sipedon sipedon
Central Plains Milksnake
Lampropeltis triangulum gentilis
Western Hog-nosed Snake 24
Heterodon nasicus
Eastern Fence Lizard 6
Sceloporus undulatus
Greater Short-horned Lizard 25
Phrynosoma hernandesi
Western Earless Lizard 26
Holbrookia maculata
Many-lined Skink
Plestiodon multivirgatus
Common Snapping Turtle
Chelydra serpentina
Painted Turtle 15
Chrysemys picta
Western Painted Turtle 15
Chrysemys picta bellii
Pond Slider 27
Trachemys scripta
Long-legged Myotis
Myotis volans
Little Brown Bat 28
Myotis lucifugus
Fringed Myotis 29
Myotis thysanodes
Miller's Myotis 30
Myotis evotis
Big Brown Bat 31
Eptesicus fuscus
Western Red Bat 31
Lasiurus blossevillii
Hoary Bat 32
Lasiurus cinereus
Silver-haired Bat 33
Lasionycteris noctivagans
American Black Bear 34
Ursus americanus
Common Raccoon 35
Procyon lotor
Ringtail 36
Bassariscus astutus
American Badger 37
Taxidea taxus
American Marten 38
Martes americana
Short-tailed Weasel 39
Mustela erminea
Black-footed Ferret 40
Mustela nigripes
Long-tailed Weasel 41
Mustela frenata
Striped Skunk 42
Mephitis mephitis
Eastern Spotted Skunk 43
Spilogale putorius
Canada Lynx 44
Lynx canadensis
Bobcat 45
Lynx rufus
Mountain Lion 46
Puma concolor
Coyote 47
Canis latrans
Swift Fox 8
Vulpes velox
Red Fox 48
Vulpes vulpes
Gray Fox 49
Urocyon cinereoargenteus
Cervus 50
Mule Deer 51
Odocoileus hemionus
White-tailed Deer 52
Odocoileus virginianus
Bighorn Sheep 53
Ovis canadensis
Pronghorn 9
Antilocapra americana
Mountain Cottontail 54
Sylvilagus nuttallii
Eastern Cottontail 55
Sylvilagus floridanus
Black-tailed Jackrabbit 56
Lepus californicus
Snowshoe Hare 57
Lepus americanus
White-tailed Jackrabbit 8
Lepus townsendii
American Pika 58
Ochotona princeps
American Beaver 12
Castor canadensis
Meadow Jumping Mouse 59
Zapus hudsonius
Western Jumping Mouse
Zapus princeps
North American Porcupine 60
Erethizon dorsatum
Plains Pocket Gopher 61
Geomys bursarius
Northern Pocket Gopher 62
Thomomys talpoides
Hispid Pocket Mouse 31
Chaetodipus hispidus
Ord's Kangaroo Rat 63
Dipodomys ordii
Plains Pocket Mouse
Perognathus flavescens
Olive-backed Pocket Mouse
Perognathus fasciatus
Silky Pocket Mouse 31
Perognathus flavus
Long-tailed Vole
Microtus longicaudus
Meadow Vole
Microtus pennsylvanicus
Montane Vole 64
Microtus montanus
Prairie Vole
Microtus ochrogaster
Northern Rock Mouse
Peromyscus nasutus
Brush Mouse 31
Peromyscus boylii
Deer Mouse 65
Peromyscus maniculatus
Pinyon Mouse 66
Peromyscus truei
Western Harvest Mouse 15
Reithrodontomys megalotis
Plains Harvest Mouse 67
Reithrodontomys montanus
House Mouse 68
Mus musculus
Mexican Woodrat 31
Neotoma mexicana
Bushy-tailed Wood Rat
Neotoma cinerea
Northern Grasshopper Mouse 69
Onychomys leucogaster
Muskrat 70
Ondatra zibethicus

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

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