Mammals of Montana

Black bear

Order: Carnivora, Family: Ursidae

Occurrence: Forests, slide areas, alpine meadows

The American black bear (Ursus americanus) is North America's smallest and most common species of bear. It is a generalist animal, being able to exploit numerous different habitats and foodstuffs. The American black bear is listed by the IUCN as Least Concern, due to the species widespread distribution and a large global population estimated to be twice that of all other bear species combined.

Bighorn sheep

Order: Artiodactyla, Family: Bovidae

Occurrence: Open mountainous areas

Bighorn sheep (Ovis canadensis) is a species of sheep in North America with large horns. The horns can weigh up to 30 pounds (14 kg), while the sheep themselves weigh up to 300 pounds (140 kg). Recent genetic testing indicates that there are three distinct subspecies of Ovis canadensis, one of which is endangered: Ovis canadensis sierrae.

American bison

Order: Artiodactyla Family: Bovidae

Occurrence: Eastside parklands and prairies

The American bison (Bison bison) is a North American species of bison, also commonly known as the American buffalo. These bison once roamed the grasslands of North America in massive herds; their range roughly formed a triangle between the Great Bear Lake in Canada's far northwest, south to the Mexican states of Durango and Nuevo León, and east along the western boundary of the Appalachian Mountains.

Bobcat

Order: Carnivora, Family: Felidae

Occurrence: Open forests, brushy areas

The bobcat (Lynx rufus) is a North American mammal of the cat family, Felidae. With twelve recognized subspecies, it ranges from southern Canada to northern Mexico, including most of the continental United States. The Bobcat is an adaptable predator that inhabits wooded areas, as well as semi-desert, urban edge, forest edges and swampland environments. It persists in much of its original range and populations are healthy.

Coyote

Order: Carnivora, Family: Canidae

Occurrence: Forests, grasslands

The coyote (/kaɪˈoʊtiː/ or /ˈkaɪ.oʊt/) (Canis latrans), also known as the American jackal or the prairie wolf, is a species of canid found throughout North and Central America, ranging from Panama in the south, north through Mexico, the United States and Canada. It occurs as far north as Alaska and all but the northernmost portions of Canada.

Elk

Order: Artiodactyla, Family: Cervidae

Occurrence: Open forests, meadows

The elk, or wapiti (Cervus canadensis), is one of the largest species of deer in the world and one of the largest mammals in North America and eastern Asia. In the deer family (Cervidae), only the moose, Alces alces (called an "elk" in Europe), is larger, and Cervus unicolor (the sambar deer) can rival the C. canadensis elk in size. Elk range in forest and forest-edge habitat, feeding on grasses, plants, leaves, and bark.

Gray wolf

Order: Carnivora, Family: Canidae

Occurrence: Coniferous forests

The gray wolf or grey wolf (Canis lupus), often known simply as the wolf, is the largest wild member of the family Canidae. It is an ice age survivor originating during the Late Pleistocene around 300,000 years ago. DNA sequencing and genetic drift studies reaffirm that the gray wolf shares a common ancestry with the domestic dog (Canis lupus familiaris). Although certain aspects of this conclusion have been questioned, the main body of evidence confirms it. A number of other gray wolf subspecies have been identified, though the actual number of subspecies is still open to discussion. Gray wolves are typically apex predators in the ecosystems they occupy.

Grizzly bear

Order: Carnivora, Family: Ursidae

Occurrence: Forests, slide areas, alpine meadows

The grizzly bear (Ursus arctos horribilis), also known as the silvertip bear, is a subspecies of brown bear (Ursus arctos) that generally lives in the uplands of western North America. Grizzlies are normally solitary active animals, but in coastal areas the grizzly congregates alongside streams, lakes, rivers, and ponds during the salmon spawn.

Canada lynx

Order: Carnivora, Family: Felidae

Occurrence: Coniferous forests

The Canada lynx (Lynx canadensis) is a North American mammal of the cat family, Felidae. It is a close relative of the Eurasian lynx (Lynx lynx). Some authorities regard both as conspecific. However, in some characteristics the Canadian lynx is more like the Bobcat (Lynx rufus) than the Eurasian lynx. With the recognized subspecies, it ranges across Canada and into Alaska as well as some parts of the northern United States.

Moose

Order: Artiodactyla, Family: Cervidae

Occurrence: Coniferous forests, lakes, slow streams, marshy areas

The moose (North America) or common European elk (Europe), Alces alces, is the largest extant species in the deer family. Moose are distinguished by the palmate antlers of the males; other members of the family have antlers with a "twig-like" configuration. Moose typically inhabit boreal and mixed deciduous forests of the Northern Hemisphere in temperate to subarctic climates.

Mountain goat

Order: Artiodactyla, Family: Bovidae

Occurrence: High peaks and meadows

The Mountain goat (Oreamnos americanus), also known as the Rocky Mountain goat, is a large-hoofed mammal found only in North America. Despite its vernacular name, it is not a member of Capra, the genus of true goats. It resides at high elevations and is a sure-footed climber, often resting on rocky cliffs that predators cannot reach.

Mountain lion

Order: Carnivora, Family: Felidae

Occurrence: Coniferous forests

The cougar (Puma concolor), also known as puma, mountain lion, mountain cat, catamount or panther, depending on the region, is a mammal of the family Felidae, native to the Americas. This large, solitary cat has the greatest range of any large wild terrestrial mammal in the Western Hemisphere, extending from Yukon in Canada to the southern Andes of South America. An adaptable, generalist species, the cougar is found in every major American habitat type. It is the second heaviest cat in the American continents after the jaguar. Although large, the cougar is most closely related to smaller felines.

Mule deer

Order: Artiodactyla, Family: Cervidae

Occurrence: Open forests, meadows, often at high elevations

The mule deer (Odocoileus hemionus) is a deer whose habitat is in the western half of North America. It gets its name from its large mule-like ears. Adult male mule deer are called bucks, adult females are called does, and young of both sexes are called fawns. The black-tailed deer is considered by some a distinct species though it is classified as a subspecies of the Mule Deer. Unlike its cousin, the white-tailed deer, mule deer are generally more associated with the land west of the Missouri River. The most noticeable differences between whitetails and mule deer are the color of their tails and configuration of their antlers. The mule deer's tail is black tipped.

Pronghorn

Order: Artiodactyla Family: Antilocapridae

Occurrence: Eastside prairies,

The pronghorn (Antilocapra americana), is a species of artiodactyl mammal native to interior western and central North America. Though not a true antelope, it is often known colloquially in North America as the prong buck, pronghorn antelope or simply antelope, as it closely resembles the true antelopes of the Old World and fills a similar ecological niche due to convergent evolution. It is the only surviving member of the family Antilocapridae.

Red fox

Order: Carnivora, Family: Canidae

Occurrence: Grasslands, open forest

The red fox (Vulpes vulpes) is a small canid native to much of North America and Eurasia, as well as northern Africa. It is the most recognizable species of fox and in many areas it is referred to simply as "the fox". As its name suggests, its fur is predominantly reddish-brown, but there is a naturally occurring grey morph known as the “silver” fox. The red fox is by far the most widespread and abundant species of fox, found in almost every single habitat in the Northern Hemisphere, from the coastal marshes of United States, to the alpine tundras of Tibetan Plateau.

Swift fox

Order: Carnivora, Family: Canidae

Occurrence: grasslands

The swift fox (Vulpes velox) is a small light orange-tan fox around the size of a domestic cat found in the western grasslands of North America, such as Colorado, New Mexico and Texas. It also lives in Manitoba, Saskatchewan and Alberta in Canada, where it was previously extirpated. It is closely related to the kit fox and the two species are sometimes known as subspecies of Vulpes velox because hybrids of the two species occur naturally where their ranges overlap.

The swift fox lives primarily in short-grass prairies and deserts. Due to predator control programs in the 1930s, it was considered extinct in Canada for some time, but reintroduction programs have been successful in reintroducing the species. Due to stable populations elsewhere, the species is considered by the IUCN to be of Least Concern,

White-tailed deer

Order: Artiodactyla, Family: Cervidae

Occurrence: Coniferous forests, meadows, creek and river bottoms,

The white-tailed deer (Odocoileus virginianus), also known as the Virginia deer, or simply as the whitetail, is a medium-sized deer native to the United States (all but five of the states), Canada, Mexico, Central America, and in South America as far south as Peru. The species is most common east of the Rocky Mountains, and is absent from much of the western United States, including Nevada, Utah, California, Hawaii, and Alaska (though its close relatives, the mule deer and black-tailed deer Odocoileus hemionus, can be found there). It does, however, survive in aspen parklands and deciduous river bottomlands within the central and northern Great Plains, and in mixed deciduous riparian corridors, river valley bottomlands, and lower foothills of the northern Rocky Mountain regions from Wyoming to southeastern British Columbia.

Woodland caribou

Order: Artiodactyla, Family: Cervidae

The migratory woodland caribou (Rangifer tarandus caribou), also known as the forest caribou or woodland caribou (not to be confused with woodland reindeer, a term which also includes forest-dwelling Eurasian subspecies), is a subspecies of the caribou. As traditionally defined, it is found in boreal forests of Canada and far northern contiguous United States, ranging from Newfoundland and Labrador west and south to Washington, but some evidence suggests this range actually includes several subspecies.

Raccoons

Order: Carnivora Family: Procyonidae

Raccoon, Procyon lotor, Open forests, stream bottoms

Badgers and weasels

Order: Carnivora Family: Mustelidae

American badger, Taxidea taxus, grasslands,

Fisher, Martes pennanti, coniferous forests,

American marten, Martes americana, coniferous forests,

American mink, Neovison vison, creek and lake edges,

North American river otter, Lontra canadensis, rivers, lakes, ponds,

Least weasel, Mustela nivalis, open forests and grasslands,

Long-tailed weasel, Mustela frenata, open forests and meadows,

Short-tailed weasel, Mustela erminea, coniferous forests and meadows,

Wolverine, Gulo gulo, coniferous forests and alpine meadows

Black-footed ferret, Mustela nigripes, prairie, grassland, large meadows

Skunks

Order: Carnivora Family: Mephitidae

Striped skunk, Mephitis mephitis, open forests and grasslands

Western spotted skunk, Spilogale gracilis, mixed woodlands, open areas, and farmlands

Hares and rabbits

From Montana Field Guide:

Order: Lagomorpha Family: Leporidae

Snowshoe hare, Lepus americanus, coniferous forests,

White-tailed jackrabbit, Lepus townsendii, grasslands

Mountain cottontail, Sylvilagus nuttallii, forests, brushy areas,

Black-tailed jackrabbit, Lepus californicus

Desert cottontail, Sylvilagus audubonii

Eastern cottontail, Sylvilagus floridanus

Pygmy rabbit, Brachylagus idahoensis

Pikas

Order: Lagomorpha Family: Ochotonidae

American pika, Ochotona princeps, rocky slopes,

Shrews

From the Montana Field Guide:

Order: Soricomorpha Family: Soricidae

Dusky shrew, Sorex monticolus, higher elevation coniferous forests,

Masked shrew, Sorex cinereus, coniferous forests, meadows, ponds and stream edges,

American water shrew, Sorex palustris, stream edges,

Pygmy shrew, Sorex hoyi, dry open coniferous forests,

Vagrant shrew, Sorex vagrans, moist forests and grasslands, marsh and stream edges,

Arctic shrew, Sorex arcticus

Dwarf shrew, Sorex nanus

Hayden's shrew, Sorex haydeni

Merriam's shrew, Sorex merriami

Northern short-tailed shrew, Blarina brevicauda

Preble's shrew, Sorex preblei

Beaver

Order: Rodentia Family: Castoridae

North American beaver, Castor canadensis, ponds, streams, lakes.

Squirrels

From the Montana Field Guide:

Order: Rodentia Family: Sciuridae

Least chipmunk, Tamias minimus, high open forests, brushy, rocky areas, alpine meadows

Yellow-pine chipmunk, Tamias amoenus, open forests, brushy, rocky areas,

Red-tailed chipmunk, Eutamias ruficaudus, open forest, brushy, rocky areas

Uinta chipmunk, Tamias umbrinus

Hoary marmot, Marmota caligata, rocky areas, alpine meadows

Yellow-bellied marmot, Marmota flaviventris, open rocky foothills, talus slopes

Northern flying squirrel, Glaucomys sabrinus, coniferous forests, nocturnal

American red squirrel, Tamiasciurus hudsonicus, coniferous forests

Eastern fox squirrel, Sciurus niger

Thirteen-lined ground squirrel, Spermophilus tridecemlineatus, grasslands

Columbian ground squirrel, Spermophilus columbianus, open woodlands, grasslands, alpine meadows

Richardson's ground squirrel, Spermophilus richardsonii, grasslands

Golden-mantled ground squirrel, Spermophilus lateralis, high open forests, rocky areas

Uinta ground squirrel, Spermophilus armatus

Wyoming ground squirrel, Spermophilus elegans

Black-tailed prairie dog, Cynomys ludovicianus

White-tailed prairie dog, Cynomys leucurus

Pocket mice and kangaroo rats

From the Montana Field Guide:

Order: Rodentia Family: Heteromyidae

Great Basin pocket mouse, Perognathus parvus

Hispid pocket mouse, Chaetodipus hispidus

Olive-backed pocket mouse, Perognathus fasciatus

Ord's kangaroo rat, Dipodomys ordii

Pocket gophers

Order: Rodentia Family: Geomyidae

Northern pocket gopher, Thomomys talpoides, meadows

Idaho pocket gopher, Thomomys idahoensis

Mice

Order: Rodentia Family: Cricetidae

Deer mouse, Peromyscus maniculatus, forests, grasslands, alpine meadows,

Northern bog lemming, Synaptomys borealis, coniferous forests,

Northern grasshopper mouse, Onychomys leucogaster

Western harvest mouse, Reithrodontomys megalotis

White-footed mouse, Peromyscus leucopus

Jumping mice

Order: Rodentia Family: Dipodidae

Western jumping mouse, Zapus princeps, grasslands, alpine meadows,

Meadow jumping mouse, Zapus hudsonius

Muskrats, voles and woodrats

From Montana Field Guide:

Order: Rodentia Family: Cricetidae

Muskrat, Ondatra zibethicus, streams, lakes, marshy areas

Heather vole, Phenacomys intermedius, coniferous forests, alpine meadows

Long-tailed vole, Microtus longicaudus, coniferous forests, grasslands

Meadow vole, Microtus pennsylvanicus, open forests, meadows, along streams, marshy areas

Southern red-backed vole, Clethrionomys gapperi, coniferous forests

Water vole, Microtus richardsoni, high elevation stream and lake edges

Montane vole, Microtus montanus

Prairie vole, Microtus ochrogaster

Sagebrush vole, Lemmiscus curtatus

Bushy-tailed woodrat, Neotoma cinerea, rocky areas, old buildings

Porcupines

Order: Rodentia Family: Erethizontidae

North American porcupine, Erethizon dorsatum, coniferous forests

Bats

From the Montana Field Guide:

Order: Chiroptera Family: Vespertilionidae

Big brown bat, Eptesicus fuscus, coniferous forests, often around buildings, caves,

Hoary bat, Lasiurus cinereus, coniferous forests, mostly nocturnal

Little brown bat, Myotis lucifugus, coniferous forests, often around buildings, caves, nocturnal

Long-eared bat, Myotis evotis, coniferous forests, meadows, nocturnal

Long-legged bat, Myotis volans, coniferous forests, meadows, nocturnal

Silver-haired bat, Lasionycteris noctivagans, coniferous forests, meadows, nocturnal

California myotis, Myotis californicus

Eastern red bat, Lasiurus borealis

Fringed myotis, Myotis thysanodes

Long-eared myotis, Myotis evotis

Northern myotis, Myotis septentrionalis

Pallid bat, Antrozous pallidus

Spotted bat, Euderma maculatum

Townsend's big-eared bat, Corynorhinus townsendii

Western small-footed myotis, Myotis ciliolabrum

Yuma myotis, Myotis yumanensis

Feral horse

The wild horse (Equus ferus) is a species of the genus Equus, which includes as subspecies both the domesticated horse as well as the undomesticated Tarpan and Przewalski's Horse. The term "wild horse" is also used colloquially to refer to free roaming herds of feral horses such as the Mustang in the United States, the Brumby in Australia, and many others. These feral horses are untamed members of the domestic horse subspecies (Equus ferus caballus), and should not be confused with the two truly "wild" horse subspecies.

Small mammals

Eastern gray squirrel, Sciurus carolinensis

Nutria, Myocastor coypus

Virginia opossum, Didelphis virginiana

House mouse, Mus musculus

Norway rat, Rattus norvegicus