Mammals of Oregon
The mammals most often spotted in Oregon, ranked by recent research-grade observations.
Most-observed mammals in Oregon
Mule Deer
Odocoileus hemionus
15,123 observations
Elk
Cervus canadensis
4,726 observations
Coypu
Myocastor coypus
3,929 observations
Eastern Gray Squirrel
Sciurus carolinensis
3,756 observations
Douglas's Squirrel
Tamiasciurus douglasii
3,138 observations
Eastern Fox Squirrel
Sciurus niger
3,117 observations
Coyote
Canis latrans
3,082 observations
Douglas's Ground Squirrel
Otospermophilus douglasii
3,029 observations · iNaturalist
Common Raccoon
Procyon lotor
2,662 observations
Common Golden-mantled Ground Squirrel
Callospermophilus lateralis
2,615 observations
American Beaver
Castor canadensis
2,578 observations
Harbor Seal
Phoca vitulina
2,222 observations
North American Porcupine
Erethizon dorsatum
2,192 observations
Townsend's Chipmunk
Neotamias townsendii
2,080 observations
Western Gray Squirrel
Sciurus griseus
1,818 observations
American Black Bear
Ursus americanus
1,550 observations
California Sea Lion
Zalophus californianus
1,453 observations
White-tailed Deer
Odocoileus virginianus
1,286 observations
Belding's Ground Squirrel
Urocitellus beldingi
1,250 observations
North American River Otter
Lontra canadensis
1,225 observations
Pronghorn
Antilocapra americana
1,205 observations
Yellow-bellied Marmot
Marmota flaviventris
1,173 observations
Bobcat
Lynx rufus
1,059 observations
Striped Skunk
Mephitis mephitis
918 observations
Brush Rabbit
Sylvilagus bachmani
858 observations
Bushy-tailed Woodrat
Neotoma cinerea
846 observations
Virginia Opossum
Didelphis virginiana
800 observations
Mountain Cottontail
Sylvilagus nuttallii
752 observations
Domestic Cat
Felis catus
747 observations
Muskrat
Ondatra zibethicus
746 observations
Steller Sea Lion
Eumetopias jubatus
726 observations
Eastern Cottontail
Sylvilagus floridanus
619 observations
Western Deer Mouse
Peromyscus sonoriensis
554 observations · iNaturalist
American Pika
Ochotona princeps
519 observations
American Mink
Neogale vison
481 observations
Mountain Lion
Puma concolor
466 observations
Grey Whale
Eschrichtius robustus
450 observations
Bighorn Sheep
Ovis canadensis
449 observations
Black-tailed Jackrabbit
Lepus californicus
426 observations
Gray Fox
Urocyon cinereoargenteus
425 observations
Red Fox
Vulpes vulpes
381 observations
Mountain Goat
Oreamnos americanus
362 observations
European Rabbit
Oryctolagus cuniculus
360 observations · iNaturalist
American Badger
Taxidea taxus
277 observations
Snowshoe Hare
Lepus americanus
276 observations
American Shrewmole
Neurotrichus gibbsii
271 observations
Long-tailed Weasel
Neogale frenata
249 observations · iNaturalist
Black Rat
Rattus rattus
248 observations
Domestic Horse
Equus caballus
232 observations · iNaturalist
Columbian Ground Squirrel
Urocitellus columbianus
224 observations