Squirrels in Oregon: where to look and what signs to watch for

Yes, squirrels live across Oregon. You have the best odds spotting them in deciduous and mixed forests west of the Cascades, especially around oak woodlands. Start your search near mature trees with visible nests (dreys) or along forest edges at dawn.

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By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated June 28, 2026.

Merriam's Ground Squirrel photographed in Oregon

Merriam's Ground SquirrelChristopher Lindsey CC BY

Eastern Fox Squirrel photographed in Oregon

Eastern Fox SquirrelTser CC BY

Douglas's Squirrel photographed in Oregon

Douglas's SquirrelPublic domain CC0

Photos by iNaturalist observers, reused under the licence each observer chose.
Found in Oregon
8
species recorded
29,694
GBIF records
May, June, April
peak months

Verified species, source iNaturalist

18 types of squirrels recorded in Oregon

18 squirrel species have a verified observation record in Oregon across the squirrel family (Sciuridae), each with at least 10 confirmed sightings. The full list, ranked by how often each is recorded, is below.

2 of the 18 shown are recorded as introduced to Oregon rather than native.

  • Eastern Gray Squirrel (Sciurus carolinensis), a species recorded in Oregon1

    Eastern Gray Squirrel

    Sciurus carolinensis

    3,624 recordsIntroduced
  • Douglas's Squirrel (Tamiasciurus douglasii), a species recorded in Oregon2

    Douglas's Squirrel

    Tamiasciurus douglasii

    3,147 records

    Michael Kauffmann CC BY-ND

    Wikipedia
  • Douglas's Ground Squirrel (Otospermophilus douglasii), a species recorded in Oregon3

    Douglas's Ground Squirrel

    Otospermophilus douglasii

    3,095 records

    Jonathan Eisen CC BY

    Wikipedia
  • Eastern Fox Squirrel (Sciurus niger), a species recorded in Oregon4

    Eastern Fox Squirrel

    Sciurus niger

    2,773 recordsIntroduced

    davis0117 CC BY

    Wikipedia
  • Common Golden-mantled Ground Squirrel (Callospermophilus lateralis), a species recorded in Oregon5

    Common Golden-mantled Ground Squirrel

    Callospermophilus lateralis

    2,720 records

    Josiah Londer茅e CC BY

    Wikipedia
  • Townsend's Chipmunk (Neotamias townsendii), a species recorded in Oregon6

    Townsend's Chipmunk

    Neotamias townsendii

    2,284 records

    Eric Habisch CC BY

    Wikipedia
  • Western Gray Squirrel (Sciurus griseus), a species recorded in Oregon7

    Western Gray Squirrel

    Sciurus griseus

    1,917 records

    Cricket Raspet CC BY

    Wikipedia
  • Belding's Ground Squirrel (Urocitellus beldingi), a species recorded in Oregon8

    Belding's Ground Squirrel

    Urocitellus beldingi

    1,536 records
  • Yellow-bellied Marmot (Marmota flaviventris), a species recorded in Oregon9

    Yellow-bellied Marmot

    Marmota flaviventris

    980 records

    Thomas Koffel CC BY

    Wikipedia
  • Yellow-pine Chipmunk (Neotamias amoenus), a species recorded in Oregon10

    Yellow-pine Chipmunk

    Neotamias amoenus

    456 records

    Jason Alexander CC BY

    Wikipedia
  • Least Chipmunk (Neotamias minimus), a species recorded in Oregon11

    Least Chipmunk

    Neotamias minimus

    318 records

    Colin Croft CC BY

    Wikipedia
  • Columbian Ground Squirrel (Urocitellus columbianus), a species recorded in Oregon12

    Columbian Ground Squirrel

    Urocitellus columbianus

    200 records

    Michael and Antoni Hinczewski CC BY

    Wikipedia

Also recorded in Oregon

#SpeciesRecords
13American Red SquirrelTamiasciurus hudsonicus198
14Humboldt's Flying SquirrelGlaucomys oregonensis110
15Merriam's Ground SquirrelUrocitellus canus77
16Siskiyou ChipmunkNeotamias siskiyou43
17White-tailed Antelope SquirrelAmmospermophilus leucurus19
18Shadow ChipmunkNeotamias senex10

Plus 2 more recorded only rarely (fewer than 10 verified sightings). Counts from verified iNaturalist observations. Photos by iNaturalist observers, reused under the licence each observer chose.

Real sighting data, source iNaturalist

24,557 verified observations on iNaturalist of squirrel have been recorded in Oregon, most often in May, June, April.

When squirrel are recorded in Oregon

Yes, squirrels live across Oregon. You have the best odds spotting them in deciduous and mixed forests west of the Cascades, especially around oak woodlands. Start your search near mature trees with visible nests (dreys) or along forest edges at dawn.

1. Where are squirrels most likely found in Oregon?

Squirrels are widespread, but each species favors specific habitat. The Western gray squirrel sticks to oak woodlands in the Willamette Valley and southwestern Oregon. The Douglas squirrel prefers conifer forests in the Cascades and Coast Range. California ground squirrels live in open, grassy areas east of the Cascades. For reliable sightings, visit parks with large oaks likeSilver Falls State Parkor urban areas such as Portland's Forest Park.

2. What time of day are squirrels most active?

Squirrels are most active in the early morning and late afternoon, especially during spring and fall. In hot summer weather, they often shift activity to dawn and dusk. Winter activity is reduced, but on mild days they may forage midday. The best odds for watching natural behavior are between 7-10 am and 4-6 pm, when squirrels are busy gathering food.

3. How can I identify squirrel tracks and signs?

Look for four-toed front tracks and five-toed hind tracks in mud or snow. Hind tracks are longer (about 2-3 inches). Squirrel signs also include scratched bark on trees (from climbing), gnawed pine cones with the scales stripped off, and leafy dreys about 12-20 inches across high in tree forks. Listen for chattering calls, which often signal a squirrel's presence before you see it.

See ourstate animal guidefor the next step.

4. What squirrel species live in Oregon?

Oregon hosts four main squirrel species. The Western gray squirrel is the largest, with a long bushy tail and gray body. The Douglas squirrel is smaller, reddish-brown, and very vocal. The California ground squirrel lives in colonies and hibernates in winter. The northern flying squirrel is nocturnal and rarely seen, but lives in mature conifer forests across the state. For a deeper dive, visit oursquirrel page.

5. Where are the best squirrel watching spots in Oregon?

Try Tryon Creek State Natural Area near Portland for Douglas and Western gray squirrels. Mount Tabor Park in Portland has healthy ground squirrel populations. In the Willamette Valley, check out the oak groves at Ankeny National Wildlife Refuge. For a wider Oregon wildlife experience, exploreOregon's state parksand watch for squirrels along hiking trails.

6. What should I look for when spotting squirrels?

Focus on movement in trees and on the ground. Look for flicking tails, hopping gait, and squirrels pausing upright to scan. Listen for rustling leaves and chattering calls. In winter, bare branches make nests (dreys) easy to spot. Use binoculars to watch from a distance without disturbing them. Patience is key; squirrels often appear after a few quiet minutes.

7. Show Your Squirrel Spotting Pride

After a day of watching squirrels, you might want a shirt that celebrates your interest. Easy Street Markets carries several squirrel designs that work well as a memory of your outings. Here are a few options:

Wild Wings Wildlife T-Shirt Gray Squirrel Unisex Graphic Tee For Men & Women

This 100% cotton tee features a clean gray squirrel graphic, perfect for a subtle wildlife look.Check Price and Availability

Squirrel Lover Vintage T-Shirt

A classic retro design for anyone who loves squirrels.Check Price and Availability

Squirrel Shirt Funny Tee

A humorous squirrel design that stands out.Check Price and Availability

Browse more options on ourt-shirts page.

8. Frequently Asked Questions about Squirrels in Oregon

**Are there squirrels in Oregon?** Yes, four main species live throughout the state, from urban parks to remote forests.

**What do Oregon squirrels eat?** They eat nuts, seeds, acorns, fungi, insects, and occasionally bird eggs. Western gray squirrels rely heavily on acorns.

**Are squirrels a nuisance in Oregon?** In urban areas they can raid bird feeders and gardens, but they are a natural part of the ecosystem. Simple deterrents like feeder guards help.

**When is the best season to see squirrels?** Spring and fall offer the most activity. In spring, you may see young squirrels learning to forage.

**How can I attract squirrels to my yard?** Provide a water source, plant oak or hazelnut trees, and install a squirrel feeder with unsalted peanuts in the shell.

For more on squirrels, visit oursquirrel hubandOregon wildlife guide.

See ourtour planning ideasfor the next step.

Gear and field guides

Plan your trip

Best time to see squirrel in Oregon: May, June, April

See the month-by-month sighting calendar.

When to go

Plan your squirrel sighting in Oregon

29,694 verified squirrel records have been logged in Oregon, most recently in 2026. See the GBIF records.

Where to look in Oregon

Planning a trip to see squirrel? Find places to stay near Crater Lake National Park on Booking.com.

Frequently asked questions

What squirrel species live in Oregon?+

Squirrels are widespread, but each species favors specific habitat. The Western gray squirrel sticks to oak woodlands in the Willamette Valley and southwestern Oregon. The Douglas squirrel prefers conifer forests in the Cascades and Coast Range. California ground squirrels live in open, grassy areas east of the Cascades. For reliable sightings, visit parks with large oaks likeSilver Falls State Parkor urban areas such as Portland's Forest Park.

Where can you see squirrels in Oregon?+

Squirrels are widespread, but each species favors specific habitat. The Western gray squirrel sticks to oak woodlands in the Willamette Valley and southwestern Oregon. The Douglas squirrel prefers conifer forests in the Cascades and Coast Range. California ground squirrels live in open, grassy areas east of the Cascades. For reliable sightings, visit parks with large oaks likeSilver Falls State Parkor urban areas such as Portland's Forest Park.

When is the best time to see squirrels in Oregon?+

Squirrels are widespread, but each species favors specific habitat. The Western gray squirrel sticks to oak woodlands in the Willamette Valley and southwestern Oregon. The Douglas squirrel prefers conifer forests in the Cascades and Coast Range. California ground squirrels live in open, grassy areas east of the Cascades. For reliable sightings, visit parks with large oaks likeSilver Falls State Parkor urban areas such as Portland's Forest Park.