List of mammals of Oregon

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List of mammals of Oregon

This list of mammals of Oregon includes all wild mammal species living in or recently extirpated from the U.S. state of Oregon or its coastal shores. This list includes all species from the lists published by the American Society of Mammalogists or found in the comprehensive text Land Mammals of Oregon published in 1998. Rare instances where these lists disagree are noted. Species are grouped by order and then listed in sortable tables by family. Subspecies present in the region are discussed in the notes. The IUCN Red List status for each species is presented. Images presented are from Oregon or adjacent states, as possible. Species found only in captivity are not listed.[1][2]

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The North American beaver is the state mammal of Oregon.

Oregon mammals by order

Table has not been updated for threatened species, thus all are listed "n/a".

More information Order, Members ...
Order Members Species Threatened species
Artiodactyla Even-toed ungulates 7 n/a
Carnivora Carnivorans 24 n/a
Cetacea Whales, dolphins and porpoises 6 n/a
Chiroptera Bats 15 n/a
Didelphimorphia Common opossums 1 n/a
Lagomorpha Hares, rabbits and pikas 8 n/a
Rodentia Rodents 63 n/a
Soricomorpha Shrews, moles and solenodons 15 n/a
Total 139 n/a
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Conservation statuses

Species are classified in nine groups, set through criteria such as rate of decline, population size, area of geographic distribution, degree of population and distribution fragmentation. The tables below reclassified results before 1994 to reflect the current rating system.

More information Low vulnerability, Threatened ...
Low vulnerability Threatened Extinct Insufficient data
Least concern
Near threatened
Vulnerable
Endangered
Critically endangered
Extinct in the wild
Extinct
Data deficient
Not evaluated
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Terrestrial mammals

Summarize
Perspective

Carnivora

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Between 25,000 and 30,000 black bears reside in Oregon.[3]

Carnivora (/kɑːrˈnɪvərə/ or /ˌkɑːrnɪˈvɔːrə/; from Latin carō (stem carn-) "flesh", + vorāre "to devour") is one of the most diverse of the mammalian orders. The gray wolf has recolonized Oregon especially in the northeast and is included in the list below. The grizzly bear was extirpated from the state in approximately 1940. Since it is included in Land Mammals of Oregon, it is included in the list below.[4]

More information Common name, Scientific name authority ...
Common name Scientific name
authority
Family Distribution and notes[1] Red List
Coyote
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Canis latrans
(Say, 1823)
Canidae Intermediate size between foxes and wolf; albinos have been documented in state; two of nineteen geographic races are known in the state.[5]
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[6]
Gray wolf
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Canis lupus
(Linnaeus, 1758)
Canidae Resettled in the state. Gray wolves in Oregon represent northwestern wolves (Canis lupus occidentalis) which migrated from neighboring Idaho; as of the end of 2013, there were a minimum 64 individuals with 4 breeding pairs.[7] Protected under the state Endangered Species Act and under the federal ESA west of highways.[8] The first confirmed wolf in the state since 1947 was OR-7 (pictured), also known as Journey.
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[9]
Gray fox
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Urocyon cinereoargenteus
(Schreber, 1775)
Canidae Found throughout the state; grizzle gray coloring; tail has black stripe on dorsal aspect; nocturnal and crepuscular; tree climber for resting, foraging or escape from predators (unique among North American canids)[10]
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[11]
Kit fox
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Vulpes macrotis
(Merriam, 1888)
Canidae Southeast region of state; smallest canid in North America; brownish-gray dorsum, lightening through buff to white on abdomen; large ears; tip of tail is black.[10]
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[12]
Red fox
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Vulpes vulpes
(Linnaeus, 1758)
Canidae Found throughout state; red phase individuals are more predominant than silver or crossed; populations increased as wolf populations declined; subspecies Sierra Nevada red fox (Vulpes vulpes necator) observed on Mt Hood and Crater Lake in or after 2010.[13]
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[14]
Black bear
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Ursus americanus
(Pallas, 1780)
Ursidae
Grizzly bear
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Ursus arctos
(Linnaeus, 1758)
Ursidae Extirpated; historically, they were broadly distributed throughout state except for arid eastern reaches. The last grizzly was killed in Oregon in 1931, according to some authorities.[15]
Wolverine
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Gulo gulo Mustelidae Extirpated; occasional vagrants appear from neighboring states.
Pacific marten
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Martes caurina
(Merriam, 1890)
Mustelidae
American ermine
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Mustela richardsonii Mustelidae
Long-tailed weasel
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Neogale frenata Mustelidae
American mink
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Neogale vison Mustelidae
Fisher
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Pekania pennanti
(Erxleben, 1777)
Mustelidae Reintroduced; protected in Oregon.[16]
American badger
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Taxidea taxus Mustelidae More common in sagebrush deserts in eastern Oregon.
Sea otter
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Enhydra lutris Mustelidae Extirpated; the last native sea otter in Oregon was killed in the early 20th century. In 1970 and 1971, 95 sea otters were reintroduced from Amchitka Island, Alaska, to the southern Oregon coast. However, the attempt failed and otters soon disappeared. Occasional sightings are most likely wanderers from neighboring states.
North American river otter
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Lontra canadensis Mustelidae
Striped skunk
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Mephitis mephitis Mephitidae
Western spotted skunk
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Spilogale gracilis Mephitidae
Northern fur seal
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Callorhinus ursinus Otariidae
Steller sea lion
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Eumetopias jubatus Otariidae
Harbor seal
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Phoca vitulina Phocidae
Northern elephant seal
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Mirounga angustirostris Phocidae
Ring-tailed cat
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Bassariscus astutus Procyonidae
Raccoon
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Procyon lotor Procyonidae
Canada lynx
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Lynx canadensis Felidae Extirpated; historically ranged through the Willamette Valley, the Cascade range, Steens Mountain, the Stinkingwater Mountains, the Blue Mountains and the Wallowa Mountains.[17] Under federal ESA protection since 2000 with critical habitat areas defined.[18]
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[18]
Bobcat
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Lynx rufus Felidae
Mountain lion
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Puma concolor Felidae
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Chiroptera

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Bridges are constructed in Oregon with an eye towards protection of Townsend's big-eared bats and other wildlife species.[19]
More information Common name, Scientific name authority ...
Common name Scientific name
authority
Family Distribution and notes[1] Red List
Big brown bat
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Eptesicus fuscus Vespertilionidae
Western pipistrelle or canyon bat
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Pipistrellius hesperus Vespertilionidae Smallest bat in Oregon.[20]
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[21]
Western red bat
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Lasiurus blossevillii Vespertilionidae
Hoary bat
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Lasiurus cinereus Vespertilionidae
Townsend's big-eared bat
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Corynorhinus townsendii Vespertilionidae
Spotted bat
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Euderma maculatum Vespertilionidae
Pallid bat
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Antrozous pallidus Vespertilionidae Typically found in desert regions, semi-arid.[1]
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[22]
Silver-haired bat
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Lasionycteris noctivagans Vespertilionidae
Californian myotis
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Myotis californicus Vespertilionidae
Western small-footed bat
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Myotis ciliolabrum Vespertilionidae
Little brown myotis
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Myotis lucifugus Vespertilionidae
Dark-nosed small-footed myotis
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Myotis melanorhinus Vespertilionidae
Fringed myotis
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Myotis thysanodes Vespertilionidae
Long-legged myotis
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Myotis volans Vespertilionidae
Yuma myotis
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Myotis yumanensis Vespertilionidae
Brazilian/Mexican free-tailed bat
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Tadarida brasiliensis Molossidae
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Rodentia

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The North Oregon Coast population of red tree voles are candidates for protection under the Endangered Species Act.[23]

The North Oregon Coast population of red tree voles (Arborimus longicaudus) are candidates for protection under the Endangered Species Act.[23][24]

More information Common name, Scientific name authority ...
Common name Scientific name
authority
Family Distribution and notes[1] Red List
Mountain beaver
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Aplodontia rufa Aplodontidae
North American beaver
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Castor canadensis Castoridae
Common porcupine
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Erethizon dorsatum Erethizontidae
Nutria
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Myocastor coypus Myocastoridae Introduced.
Long-tailed vole
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Microtus longicaudus Cricetidae
Montane vole
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Microtus montanus Cricetidae
Creeping vole
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Microtus oregoni Cricetidae
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[25]
North American water vole
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Microtus richardsoni Cricetidae
7
[26]
Townsend's vole
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Microtus townsendii Cricetidae
7
[27]
Bushy-tailed woodrat
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Neotoma cinerea Cricetidae
7
[28]
Dusky-footed woodrat
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Neotoma fuscipes Cricetidae
7
[29]
Desert woodrat
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Neotoma lepida Cricetidae
7
[30]
Common muskrat
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Ondatra zibethicus Cricetidae
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[31]
Northern grasshopper mouse
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Onychomys leucogaster Cricetidae
White-footed vole
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Arborimus albipes Cricetidae
Red tree vole
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Arborimus longicaudus Cricetidae
Western red-backed vole
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Clethrionomys californicus Cricetidae
Southern red-backed vole
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Myodes gapperi Cricetidae
Sagebrush vole
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Lemmiscus curtatus Cricetidae
California vole
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Microtus californicus Cricetidae
Gray-tailed vole
Microtus canicaudus Cricetidae
Brush deermouse
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Peromyscus boylii Cricetidae
Canyon deermouse
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Peromyscus crinitus Cricetidae
Western deermouse
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Peromyscus sonoriensis Cricetidae
Piñon deermouse
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Peromyscus truei Cricetidae
Western heather vole
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Phenacomys intermedius Cricetidae
Western harvest mouse
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Reithrodontomys megalotis Cricetidae
Botta's pocket gopher
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Thomomys bottae Geomyidae
Northern pocket gopher
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Thomomys talpoides Geomyidae
Mazama pocket gopher
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Thomomys mazama Geomyidae
Townsend's pocket gopher
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Thomomys townsendii Geomyidae
Camas pocket gopher
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Thomomys bulbivorus Geomyidae
California kangaroo rat
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Dipodomys californicus Heteromyidae
Yellow-pine chipmunk
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Tamias amoenus Sciuridae
Least chipmunk
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Tamias minimus Sciuridae
North American red squirrel
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Tamiasciurus hudsonicus Sciuridae
Belding's ground squirrel
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Urocitellus beldingi Sciuridae
Merriam's ground squirrel
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Urocitellus canus Sciuridae
Columbian ground squirrel
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Urocitellus columbianus Sciuridae
Wyoming ground squirrel
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Urocitellus elegans Sciuridae
Chisel-toothed kangaroo rat
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Dipodomys microps Heteromyidae
Ord's kangaroo rat
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Dipodomys ordii Heteromyidae
Dark kangaroo mouse
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Microdipodops megacephalus Heteromyidae
Little pocket mouse
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Perognathus longimembris Heteromyidae
Great Basin pocket mouse
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Perognathus parvus Heteromyidae
House mouse
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Mus musculus Muridae Not native
Brown rat
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Rattus norvegicus Muridae Not native
Black rat
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Rattus rattus Muridae Not native
Golden-mantled ground squirrel
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Callospermophilus lateralis Sciuridae
Douglas squirrel
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Tamiasciurus douglasii Sciuridae
Northern flying squirrel
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Glaucomys sabrinus Sciuridae
Humboldt's flying squirrel
Glaucomys oregonensis Sciuridae
Yellow-bellied marmot
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Marmota flaviventris Sciuridae
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Artiodactyla

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Elk calves at the Jewell Meadows Wildlife Area
More information Common name, Scientific name authority ...
Common name Scientific name
authority
Family Distribution and notes[1] Red List
Pronghorn
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Antilocapra americana Antilocapridae The Oregon pronghorn subspecies (A. a. oregona Bailey) has been described, but taxonomic status may be in question. Found in sagebrush steppe in eastern regions of state. Fastest mammal on the continent: top speeds of 50 mph (80 km/h)[32]
(Image taken in Catlow Valley, Oregon)
American bison
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Bison bison Bovidae Historically native to eastern and central Oregon. Extirpated by the early to mid-19th century.
Bighorn sheep
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Ovis canadensis Bovidae Historically native to much of eastern Oregon, but then became extinct in the state[33] until reintroductions, recently to the Mutton Mountains,[34] Cottonwood Canyon State Park and near the John Day Fossil Beds in the 21st century;[35] bighorn sheep now live in herds scattered across eastern Oregon.[33]
Mountain goat
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Oreamnos americanus Bovidae Historically native to the northern Oregon Cascades and the Wallowa and Blue mountains until extinction in the state in the 19th or 20th century; reintroduced to the Wallowa and Elkhorn mountains starting in the 20th century,[33] and recently introduced to Mount Jefferson in 2010 and 2012.[34]
Elk
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Cervus canadensis Cervidae Common throughout state
Mule deer
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Odocoileus hemionus Cervidae Common throughout
White-tailed deer
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Odocoileus virginianus Cervidae Common throughout
Moose
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Alces americanus Cervidae Northeastern reaches, Wallowa County, small population of the subspecies Shiras moose (A. a. shirasi);[36] largest extant species in deer family; herbivorous.
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Eulipotyphla

More information Common name, Scientific name authority ...
Common name Scientific name
authority
Family Distribution and notes[1] Red List
Baird's shrew
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Sorex bairdii Soricidae Endemic to northwestern Oregon; two subspecies described, see main article page; dwells among conifers.
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[38]
Marsh shrew
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Sorex bendirii Soricidae
Masked shrew
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Sorex cinereus Soricidae Disputed. On ASM list but not in Verts.
Merriam's shrew Sorex merriami Soricidae
Dusky shrew Sorex monticolus Soricidae
Pacific shrew Sorex pacificus Soricidae
American water shrew
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Sorex palustris Soricidae
Preble's shrew Sorex preblei Soricidae
Fog shrew Sorex sonomae Soricidae
Trowbridge's shrew Sorex trowbridgii Soricidae
Vagrant shrew Sorex vagrans Soricidae
Shrew mole
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Neurotrichus gibbsii Talpidae
Broad-footed mole
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Scapanus latimanus Talpidae
Coast mole Scapanus orarius Talpidae
Townsend's mole
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Scapanus townsendii Talpidae
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Lagomorpha

The order Lagomorpha consists of two living families: the Leporidae (hares and rabbits) and the Ochotonidae (pikas). The name of the order is derived from the Greek lagos (λαγός, "hare") and morphē (μορφή, "form"). There are eight species in Oregon.[39]

More information Common name, Scientific name authority ...
Common name Scientific name
authority
Family Distribution and notes[1] Red List
American pika
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Ochotona princeps
(Richardson, 1828)
Ochotonidae Columbia River Gorge, western Cascades; common herbivore; lives in rocky areas/talus habitat near vegetation, meadows; lava flows, woodcuts, disturbed habitat.
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[40]
Pygmy rabbit
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Brachylagus idahoensis
(Merriam, 1891)
Leporidae Southern Oregon, endangered in Washington; resides among dense sagebrush; rarely daytime; mostly active dawn/dusk (crepuscular); burrow dwellings; walks/scurries.
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[41]
Snowshoe hare
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Lepus americanus Leporidae Northern coast, south-central, and eastern reaches; shelters daytime; vegetation/groundcover; active crepuscular and at night; marshes, forests, dense vegetation habitats. Lepus americanus oregonus subspecies described (Orr)[42]
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[43]
Black-tailed jackrabbit
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Lepus californicus Leporidae Southwestern Oregon; agricultural fields, grazing areas/pastures, sagebrush, prairies, deserts; rests in shady ground depressions daytime; active night/crepuscular; lighter markings in summer.
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[44]
White-tailed jackrabbit
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Lepus townsendii Leporidae Eastern/central; fields, grasslands, meadows; sometimes sagebrush flats; primary activity nights; characteristic zigzag pattern with rapid bursts and leaps when pursued.
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[45]
Eastern cottontail
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Sylvilagus floridanus Leporidae Eastern slopes of the Willamette Valley and the Cascades;[46] near forests, agricultural sites, prairies, wet lowlands, margins of hardwood forests; most common of genus in state; sleeps days, under vegetation; crepuscular to nocturnal.
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[47]
Mountain cottontail
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Sylvilagus nuttallii Leporidae East of the Cascades; near rivers/streams, rockier areas; found near spruce and ponderosa pine forests, some sagebrush flats; crepuscular; may climbs trees; eats cheatgrass.
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[48]
Brush rabbit
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Sylvilagus bachmani Leporidae Verts, page 131
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[49]
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Didelphimorphia

There is only one species from the order Didelphimorphia in the state.

More information Common name, Scientific name authority ...
Common name Scientific name
authority
Family Distribution and notes Red List
Virginia opossum
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Didelphis virginiana
(Kerr, 1792)
Didelphidae Introduced early 1900s; adverse impacts on native bird populations from nest disturbances and egg consumption.[50]
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[51]
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Marine mammals

Cetacea

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Pacific white-sided dolphins are found along the Oregon Coast.
More information Common name, Scientific name authority ...
Common name Scientific name
authority
Family Distribution and notes Red List
Common minke whale
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Balaenoptera acutorostrata Balaenopteridae
Sei whale
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Balaenoptera borealis Balaenopteridae
Blue whale
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Balaenoptera musculus Balaenopteridae
Fin whale
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Balaenoptera physalus Balaenopteridae
Humpback whale
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Megaptera novaeangliae Balaenopteridae
Gray whale
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Eschrichtius robustus Eschrichtiidae
Short-beaked common dolphin
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Delphinus delphis Delphinidae
Short-finned pilot whale
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Globicephala macrorhynchus Delphinidae
Risso's dolphin
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Grampus griseus Delphinidae
Pacific white-sided dolphin
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Lagernorhynchus obliquidens Delphinidae
Northern right whale dolphin
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Lissodelphis borealis Delphinidae
Killer whale
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Orcinus orca Delphinidae
False killer whale
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Pseudorca crassidens Delphinidae
Striped dolphin
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Stenella coeruleoalba Delphinidae
Harbor porpoise
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Phocoena phocoena Phocoenidae
Dall's porpoise
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Phocoenoides dalli Phocoenidae
Sperm whale
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Physeter macrocephalus Physeteridae
Pygmy sperm whale
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Kogia breviceps Kogiidae
Dwarf sperm whale
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Kogia sima Kogiidae
Baird's beaked whale
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Berardius bairdii Ziphiidae
Hubbs' beaked whale
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Mesoplodon carlhubbsi Ziphiidae
Stejneger's beaked whale
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Mesoplodon stejnegeri Ziphiidae
Cuvier's beaked whale
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Ziphius cavirostris Ziphiidae
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See also

References

Bibliography

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