Mammals of Oregon
The mammals most often spotted in Oregon, ranked by recent research-grade observations.
84,115
recent observations
50
species listed
50
mammals
Naturalists have logged 84,115 research-grade observations across the 50 most-recorded species in Oregon. The most frequently seen is the Mule Deer, with 15,912 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
15,912 observations
Wapiti
Cervus canadensis
4,961 observations
Coypu
Myocastor coypus
4,037 observations
Eastern Gray Squirrel
Sciurus carolinensis
3,820 observations
Douglas's Squirrel
Tamiasciurus douglasii
3,349 observations
Douglas's Ground Squirrel
Otospermophilus douglasii
3,298 observations · iNaturalist
Coyote
Canis latrans
3,217 observations
Eastern Fox Squirrel
Sciurus niger
3,168 observations
Common Golden-mantled Ground Squirrel
Callospermophilus lateralis
2,922 observations
Common Raccoon
Procyon lotor
2,772 observations
American Beaver
Castor canadensis
2,649 observations
Harbor Seal
Phoca vitulina
2,331 observations
North American Porcupine
Erethizon dorsatum
2,299 observations
Townsend's Chipmunk
Neotamias townsendii
2,241 observations
Western Gray Squirrel
Sciurus griseus
1,867 observations
American Black Bear
Ursus americanus
1,691 observations
California Sea Lion
Zalophus californianus
1,488 observations
White-tailed Deer
Odocoileus virginianus
1,303 observations
Belding's Ground Squirrel
Urocitellus beldingi
1,285 observations
North American River Otter
Lontra canadensis
1,277 observations
Yellow-bellied Marmot
Marmota flaviventris
1,272 observations
Pronghorn
Antilocapra americana
1,230 observations
Bobcat
Lynx rufus
1,129 observations
Striped Skunk
Mephitis mephitis
1,018 observations
Bushy-tailed Woodrat
Neotoma cinerea
976 observations
Brush Rabbit
Sylvilagus bachmani
880 observations
Virginia Opossum
Didelphis virginiana
817 observations
Mountain Cottontail
Sylvilagus nuttallii
800 observations
Steller Sea Lion
Eumetopias jubatus
769 observations
Muskrat
Ondatra zibethicus
766 observations
Domestic Cat
Felis catus
764 observations
Eastern Cottontail
Sylvilagus floridanus
666 observations
American Pika
Ochotona princeps
659 observations
Western Deer Mouse
Peromyscus sonoriensis
592 observations · iNaturalist
American Mink
Neogale vison
499 observations
Mountain Lion
Puma concolor
482 observations
Grey Whale
Eschrichtius robustus
473 observations
Bighorn Sheep
Ovis canadensis
473 observations
Black-tailed Jackrabbit
Lepus californicus
452 observations
Gray Fox
Urocyon cinereoargenteus
451 observations
Red Fox
Vulpes vulpes
400 observations
European Rabbit
Oryctolagus cuniculus
383 observations · iNaturalist
Mountain Goat
Oreamnos americanus
377 observations
American Badger
Taxidea taxus
301 observations
Snowshoe Hare
Lepus americanus
294 observations
American Shrewmole
Neurotrichus gibbsii
286 observations
Long-tailed Weasel
Neogale frenata
272 observations · iNaturalist
Black Rat
Rattus rattus
253 observations
Columbian Ground Squirrel
Urocitellus columbianus
247 observations
Domestic Horse
Equus caballus
247 observations · iNaturalist
Mammals in nearby places
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