Mammals of Oregon
The mammals most often spotted in Oregon, ranked by recent research-grade observations.
88,416
recent observations
50
species listed
50
mammals
Naturalists have logged 88,416 research-grade observations across the 50 most-recorded species in Oregon. The most frequently seen is the Mule Deer, with 16,609 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
16,609 observations
Wapiti
Cervus canadensis
5,283 observations
Coypu
Myocastor coypus
4,209 observations
Eastern Gray Squirrel
Sciurus carolinensis
3,954 observations
Douglas's Squirrel
Tamiasciurus douglasii
3,577 observations
Douglas's Ground Squirrel
Otospermophilus douglasii
3,458 observations
Coyote
Canis latrans
3,356 observations
Eastern Fox Squirrel
Sciurus niger
3,229 observations
Common Golden-mantled Ground Squirrel
Callospermophilus lateralis
3,090 observations
Common Raccoon
Procyon lotor
2,896 observations
American Beaver
Castor canadensis
2,721 observations
North American Porcupine
Erethizon dorsatum
2,542 observations
Harbor Seal
Phoca vitulina
2,413 observations
Townsend's Chipmunk
Neotamias townsendii
2,399 observations
Western Gray Squirrel
Sciurus griseus
1,962 observations
American Black Bear
Ursus americanus
1,814 observations
California Sea Lion
Zalophus californianus
1,546 observations
White-tailed Deer
Odocoileus virginianus
1,342 observations
North American River Otter
Lontra canadensis
1,318 observations
Yellow-bellied Marmot
Marmota flaviventris
1,306 observations
Belding's Ground Squirrel
Urocitellus beldingi
1,291 observations
Pronghorn
Antilocapra americana
1,269 observations
Bobcat
Lynx rufus
1,220 observations
Striped Skunk
Mephitis mephitis
1,077 observations
Bushy-tailed Woodrat
Neotoma cinerea
1,052 observations
American Pika
Ochotona princeps
998 observations
Brush Rabbit
Sylvilagus bachmani
896 observations
Virginia Opossum
Didelphis virginiana
843 observations
Mountain Cottontail
Sylvilagus nuttallii
826 observations
Steller Sea Lion
Eumetopias jubatus
791 observations
Muskrat
Ondatra zibethicus
788 observations
Domestic Cat
Felis catus
784 observations
Eastern Cottontail
Sylvilagus floridanus
700 observations
Western Deer Mouse
Peromyscus sonoriensis
634 observations
American Mink
Neogale vison
525 observations
Mountain Lion
Puma concolor
504 observations
Grey Whale
Eschrichtius robustus
496 observations
Bighorn Sheep
Ovis canadensis
496 observations
Black-tailed Jackrabbit
Lepus californicus
478 observations
Gray Fox
Urocyon cinereoargenteus
473 observations
Red Fox
Vulpes vulpes
442 observations
European Rabbit
Oryctolagus cuniculus
410 observations · iNaturalist
Mountain Goat
Oreamnos americanus
394 observations
Snowshoe Hare
Lepus americanus
320 observations
American Badger
Taxidea taxus
313 observations
Long-tailed Weasel
Neogale frenata
298 observations · iNaturalist
American Shrewmole
Neurotrichus gibbsii
292 observations
Columbian Ground Squirrel
Urocitellus columbianus
261 observations
Domestic Horse
Equus caballus
261 observations · iNaturalist
Black Rat
Rattus rattus
260 observations
Mammals in nearby places
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