Squirrels in Idaho: Identification Guide and Where to Start Looking

1. What squirrel species live in Idaho?

Idaho hosts at least six squirrel species plus the closely related yellow-pine chipmunk. The American red squirrel is the most widespread, living in conifer forests across the state. The eastern gray squirrel is an introduced species found mostly in Boise and other towns, not in the wild forests. The northern flying squirrel lives in northern and mountain forests but is nocturnal, so it is rarely seen. On the ground you will find the Columbian ground squirrel in mountain meadows, the Belding's ground squirrel in eastern Idaho, and the golden-mantled ground squirrel, which looks like a large chipmunk without face stripes. The rare Idaho ground squirrel lives only in west-central Idaho and is protected.

See ourstate wildlife pagefor the next step.

In Idaho, squirrel sightings usually improve when you slow down and match your first stop to the most useful ID markers and likely lookalikes. Use thestate wildlife huband theroute guideto narrow your first area, then check access, weather, and distance before you settle in. A short walk with one clear viewing plan often beats covering too much ground, especially when habitat changes fast from open edges to brush, wetlands, timber, shoreline, or neighborhood cover.

2. How do I tell a tree squirrel from a ground squirrel in Idaho?

This is the first split to make, and it solves most identification puzzles. Tree squirrels have long, fluffy tails that are almost as long as their body, and they climb trees, fences, and bird feeders. When alarmed they run up, not down. Ground squirrels have shorter, thinner tails, sit upright at burrow entrances, and dive underground when scared. Their backs often show spots, speckles, or faint stripes, while tree squirrels are a solid color.

Habitat backs up the call. If you are in a Ponderosa pine forest, a city park with big trees, or a backyard, you are almost certainly looking at the American red squirrel or the introduced eastern gray squirrel. If you are in an open mountain meadow, a sagebrush flat, or a roadside field with no trees, it is a ground squirrel. Behavior is the tiebreaker: ground squirrels often stand straight up like a small post to scan for hawks, a posture tree squirrels rarely hold for long.

3. How can I tell Idaho's squirrel species apart?

Once you know whether it climbs or burrows, narrow down by size, color, and a few field marks.

The American red squirrel is small, rusty red to gray-brown on top, with a pale belly and a white eye ring. In winter it grows prominent ear tufts. It is loud and territorial, often scolding you with a long chattering rattle from a branch. The eastern gray squirrel is larger, gray with a white-edged bushy tail, and is the squirrel you see in Boise neighborhoods and parks. It is calmer around people than the red squirrel.

Among ground squirrels, the Columbian ground squirrel is large, mottled gray and tawny with a reddish face and legs, and lives in high meadows. The Belding's ground squirrel is plainer gray-brown with a short tail it often flicks. The golden-mantled ground squirrel has a single bold white stripe bordered by black on each side and a golden head, and it is the one most people confuse with a chipmunk. The key difference is the face: golden-mantled ground squirrels have no stripes on the head, while chipmunks have stripes that run across the face through the eye.

4. How do I tell a golden-mantled ground squirrel from a yellow-pine chipmunk?

These two cause the most identification mix-ups in Idaho's mountains because both have body stripes and live in the same pine forests and rocky slopes. The simplest test is the face. The yellow-pine chipmunk has dark and light stripes running across its face, including a line through the eye. The golden-mantled ground squirrel has a plain face with no stripes on it, only a golden, coppery wash over the head and shoulders.

Size and shape help too. The yellow-pine chipmunk is small and slender, about the size of a mouse with a long thin tail it holds upright when it runs. The golden-mantled ground squirrel is noticeably chunkier, roughly twice the weight, with a shorter, less twitchy tail. Chipmunks also have more stripes on the body, usually five dark stripes, while the golden-mantled ground squirrel shows just one white stripe edged in black on each side. If it darts up a low branch it is likely the chipmunk, since golden-mantled ground squirrels stay closer to the ground and their burrows.

5. When and where can I see each Idaho squirrel?

Matching the season and place to the species makes identification far easier.

For the American red squirrel, visit any mature conifer stand year-round. They stay active all winter and are easiest to find in late summer and fall when they cut and stash pine cones in loud piles called middens. For the introduced eastern gray squirrel, Boise's Kathryn Albertson Park, the Boise River Greenbelt, the University of Idaho campus in Moscow, and Coeur d'Alene's Tubbs Hill are reliable. Early morning and late afternoon are best in any season.

Ground squirrels are seasonal. The Columbian and Belding's ground squirrels are most active from spring through midsummer, then enter long hibernation, so August through winter is a poor window for them. Try mountain meadows in the Sawtooth National Recreation Area for Columbian ground squirrels, and the Camas Prairie and eastern Idaho flats for Belding's. The golden-mantled ground squirrel and yellow-pine chipmunk are common around campgrounds and rocky trailheads at middle and high elevations from late spring to early fall.

See ourstate animal guideand theSquirrels species guidefor more on each.

6. What do Idaho squirrels eat and where do they nest?

Diet and nesting also help confirm an identification. The American red squirrel eats conifer seeds above all, along with fungi, buds, and the occasional bird egg, and it caches cones in damp middens at the base of trees. It nests in tree cavities or builds leaf nests called dreys 30 to 50 feet up. The eastern gray squirrel in town eats acorns, nuts, garden seeds, and bird feeder spillage, and also builds dreys.

Ground squirrels eat green plants, seeds, insects, and roots, and they live in burrow systems with several entrances. The golden-mantled ground squirrel and yellow-pine chipmunk both stuff seeds into cheek pouches and stash them, but the chipmunk caches in a hidden larder while the ground squirrel relies more on body fat for hibernation. If you see an animal carrying food in bulging cheeks, it is a chipmunk or a ground squirrel, since tree squirrels carry food in their mouths or front paws instead.

7. What gear can make squirrel watching easier?

A pair of 8x42 binoculars helps see field marks like ear tufts and tail color. A field guide to mammals of the Northwest is also useful. If you want to share your love for squirrels, consider a wildlife-themed shirt. Check out ourSquirrel Lover Vintage T-Shirtfor a classic look.

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8. What is the easiest way to identify a squirrel I just saw?

Work through four quick checks in order. First, was it in a tree or on the ground? Tree means red squirrel or eastern gray squirrel, ground means one of the ground squirrels or a chipmunk. Second, how long and bushy was the tail? A long fluffy tail points to a tree squirrel, a short thin tail points to a ground species. Third, did it have stripes? No stripes means a tree squirrel or a plain ground squirrel, while stripes on the body suggest the golden-mantled ground squirrel or the yellow-pine chipmunk. Fourth, check the face. Stripes through the eye mean a chipmunk, a plain face with a golden head means a golden-mantled ground squirrel.

Color and size finish the job. Rusty red with winter ear tufts is the American red squirrel, solid gray with a white-edged tail is the eastern gray squirrel, and large mottled gray with a reddish face in a high meadow is the Columbian ground squirrel.

9. Are there flying squirrels in Idaho and how do I identify one?

Yes, the northern flying squirrel lives in Idaho's northern and mountain conifer forests, but it is strictly nocturnal, so most people never see one in daylight. It does not actually fly. It glides using a fur-covered membrane that stretches between its front and back legs. You identify it by its soft gray-brown fur, very large dark eyes built for night vision, a flat tail, and the loose skin flap along its sides.

The best way to spot one is after dark near older conifer stands, using a flashlight or headlamp to catch the bright eyeshine. They sometimes visit bird feeders at night and den in tree cavities or old woodpecker holes. If you hear soft thumps on a tree trunk at night or see a small gray animal glide between trees, that glide is the giveaway, since no other Idaho squirrel can do it.

10. Common questions about identifying Idaho squirrels

**Why is the squirrel in my Boise yard not in the forest guides?** Eastern gray squirrels are introduced and live mainly in towns, so in the wild forests you are far more likely to see the native American red squirrel. **Do Idaho squirrels carry diseases?** Like most rodents, squirrels can carry ticks and fleas, but direct contact is rare, so watch them from a distance. **Can I feed squirrels in Idaho parks?** It is generally discouraged because it makes them dependent and can cause health problems. **Is the chipmunk-looking animal at my campsite a chipmunk or a ground squirrel?** Check the face: stripes across the face mean a chipmunk, a plain golden head means a golden-mantled ground squirrel.

See ourtour planning ideasfor the next step.