Mammals of Oregon
The mammals most often spotted in Oregon, ranked by recent research-grade observations.
85,788
recent observations
50
species listed
50
mammals
Naturalists have logged 85,788 research-grade observations across the 50 most-recorded species in Oregon. The most frequently seen is the Mule Deer, with 16,200 recorded sightings.
Rarer finds confirmed in Oregon include Bobcat - uncommon enough that a sighting is worth logging.
Most-observed mammals in Oregon
Mule Deer
Odocoileus hemionus
16,200 observations
Wapiti
Cervus canadensis
5,104 observations
Coypu
Myocastor coypus
4,094 observations
Eastern Gray Squirrel
Sciurus carolinensis
3,853 observations
Douglas's Squirrel
Tamiasciurus douglasii
3,419 observations
Douglas's Ground Squirrel
Otospermophilus douglasii
3,379 observations
Coyote
Canis latrans
3,268 observations
Eastern Fox Squirrel
Sciurus niger
3,181 observations
Common Golden-mantled Ground Squirrel
Callospermophilus lateralis
2,997 observations
Common Raccoon
Procyon lotor
2,826 observations
American Beaver
Castor canadensis
2,687 observations
North American Porcupine
Erethizon dorsatum
2,407 observations
Harbor Seal
Phoca vitulina
2,367 observations
Townsend's Chipmunk
Neotamias townsendii
2,313 observations
Western Gray Squirrel
Sciurus griseus
1,894 observations
American Black Bear
Ursus americanus
1,768 observations
California Sea Lion
Zalophus californianus
1,517 observations
White-tailed Deer
Odocoileus virginianus
1,309 observations
North American River Otter
Lontra canadensis
1,295 observations
Belding's Ground Squirrel
Urocitellus beldingi
1,291 observations
Yellow-bellied Marmot
Marmota flaviventris
1,289 observations
Pronghorn
Antilocapra americana
1,241 observations
Bobcat
Lynx rufus
1,153 observations
Striped Skunk
Mephitis mephitis
1,029 observations
Bushy-tailed Woodrat
Neotoma cinerea
1,014 observations
Brush Rabbit
Sylvilagus bachmani
883 observations
Virginia Opossum
Didelphis virginiana
826 observations
Mountain Cottontail
Sylvilagus nuttallii
810 observations
Steller Sea Lion
Eumetopias jubatus
777 observations
Muskrat
Ondatra zibethicus
776 observations
American Pika
Ochotona princeps
773 observations
Domestic Cat
Felis catus
768 observations
Eastern Cottontail
Sylvilagus floridanus
677 observations
Western Deer Mouse
Peromyscus sonoriensis
601 observations
American Mink
Neogale vison
512 observations
Mountain Lion
Puma concolor
492 observations
Grey Whale
Eschrichtius robustus
484 observations
Bighorn Sheep
Ovis canadensis
475 observations
Black-tailed Jackrabbit
Lepus californicus
460 observations
Gray Fox
Urocyon cinereoargenteus
457 observations
Red Fox
Vulpes vulpes
416 observations
Mountain Goat
Oreamnos americanus
387 observations
European Rabbit
Oryctolagus cuniculus
387 observations · iNaturalist
American Badger
Taxidea taxus
304 observations
Snowshoe Hare
Lepus americanus
303 observations
American Shrewmole
Neurotrichus gibbsii
286 observations
Long-tailed Weasel
Neogale frenata
282 observations · iNaturalist
Black Rat
Rattus rattus
257 observations
Columbian Ground Squirrel
Urocitellus columbianus
254 observations
Domestic Horse
Equus caballus
246 observations · iNaturalist
Mammals in nearby places
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