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.
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 路 Christopher Lindsey CC BY

Eastern Fox Squirrel 路 Tser CC BY

Douglas's Squirrel 路 Public domain CC0
- 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.
Also recorded in Oregon
| # | Species | Scientific name | Records |
|---|---|---|---|
| 13 | American Red SquirrelTamiasciurus hudsonicus | Tamiasciurus hudsonicus | 198 |
| 14 | Humboldt's Flying SquirrelGlaucomys oregonensis | Glaucomys oregonensis | 110 |
| 15 | Merriam's Ground SquirrelUrocitellus canus | Urocitellus canus | 77 |
| 16 | Siskiyou ChipmunkNeotamias siskiyou | Neotamias siskiyou | 43 |
| 17 | White-tailed Antelope SquirrelAmmospermophilus leucurus | Ammospermophilus leucurus | 19 |
| 18 | Shadow ChipmunkNeotamias senex | Neotamias senex | 10 |
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.
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
- Crater Lake National Park 路 Wildlife Watching, Birdwatching 路 Find hotels
- Fort Vancouver National Historic Site 路 Wildlife Watching 路 Find hotels
- Lewis & Clark National Historic Trail 路 Wildlife Watching 路 Find hotels
- Lewis and Clark National Historical Park 路 Wildlife Watching, Birdwatching 路 Find hotels
- Nez Perce National Historical Park 路 Wildlife Watching, Birdwatching 路 Find hotels
- Oregon Caves National Monument & Preserve 路 Wildlife Watching, Birdwatching 路 Find hotels
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.
Keep exploring
More places to see squirrel
More wildlife in Oregon











