16 Types of Squirrels in Montana
Montana is home to several squirrel species, from the common Eastern gray to the elusive Northern flying squirrel. This guide helps you identify the types you're most likely to see, where to find them, and when they are most active. Start your search in forested areas near human habitation.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated June 6, 2026.
- 5
- species recorded
- July, August, June
- peak months
Verified species, source iNaturalist
16 types of squirrels recorded in Montana
16 squirrel species have a verified observation record in Montana across the squirrel family (Sciuridae), each with at least 10 confirmed sightings. The full list, ranked by how often each is recorded, is below.
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Also recorded in Montana
| # | Species | Scientific name | Records |
|---|---|---|---|
| 13 | Red-tailed ChipmunkNativeNeotamias ruficaudus | Neotamias ruficaudus | 68 |
| 14 | Wyoming Ground SquirrelUrocitellus elegans | Urocitellus elegans | 32 |
| 15 | Northern Flying SquirrelNativeGlaucomys sabrinus | Glaucomys sabrinus | 28 |
| 16 | Thirteen-lined Ground SquirrelNativeIctidomys tridecemlineatus | Ictidomys tridecemlineatus | 20 |
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
8,649 verified observations on iNaturalist of squirrel have been recorded in Montana, most often in July, August, June.
Montana is home to several squirrel species, from the common Eastern gray to the elusive Northern flying squirrel. This guide helps you identify the types you're most likely to see, where to find them, and when they are most active. Start your search in forested areas near human habitation.
What types of squirrels live in Montana?
Montana hosts five main squirrel species: the Eastern gray squirrel, Western gray squirrel, Fox squirrel, Red squirrel, and Northern flying squirrel. The Eastern gray is most common in urban areas, while the Red squirrel prefers coniferous forests. The Fox squirrel is found in riparian zones and agricultural edges. The Northern flying squirrel is nocturnal and rarely seen.
In Montana, squirrels 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.
How can I tell apart the different squirrels in Montana?
Focus on size, color, and tail shape. Eastern gray squirrels are medium-sized with gray fur and a bushy tail. Fox squirrels are larger, with reddish-brown fur and a more useful body. Red squirrels are small, rusty-red, and have a distinct white eye ring. Flying squirrels are smaller, with a flat tail and a membrane between legs. The Western gray squirrel is similar to the Eastern but has a white belly and a more silvery coat.
Where in Montana are you most likely to see squirrels?
Start in parks and residential neighborhoods of cities like Missoula, Bozeman, and Billings. Eastern grays thrive in deciduous trees. For Fox squirrels, check cottonwood stands along the Yellowstone River. Red squirrels are common in ponderosa pine forests near Helena and the Bitterroot Valley. Flying squirrels require mature conifer forests with snags, often in higher elevations.
See ourstate animal guidefor the next step.
What is the best season for squirrel sightings in Montana?
Late summer and early fall (August through October) offer the best odds. Squirrels are most active in the morning and late afternoon gathering food. Winter sightings are possible but less frequent, as some species reduce activity. Spring brings newborn kits, but adults may be more cautious. Year-round, red squirrels are vocal and often visible.
What are the key field marks for each squirrel species?
Eastern gray: uniform gray with white underparts. Western gray: silver-gray with white belly, very long tail. Fox squirrel: rusty-red with orange belly, large size. Red squirrel: reddish above, white belly, ear tufts in winter. Northern flying squirrel: small, brownish-gray, large black eyes, flattened tail. Use binoculars to observe these details.
How do I separate the Fox squirrel from the Western gray squirrel?
Fox squirrels have a reddish-brown back and orange belly, while Western grays are silver-gray with a white belly. Fox squirrels are stockier with a shorter tail. In Montana, Western grays are limited to the southwest corner, whereas Fox squirrels are more widespread along river corridors. Check the habitat: Fox squirrels prefer open woodlands, Western grays favor oak forests.
Where can I find more resources on identifying Montana squirrels?
For deeper dives, check out our mainsquirrel identification huband exploreMontana wildlife guides. If you enjoy wildlife viewing, consider awildlife-themed t-shirtto show your interest.
Show your squirrel spotting pride with these shirts
If you're into squirrel watching, here are a few picks to celebrate your sightings:
Wild Wings Wildlife T-Shirt Gray Squirrel Unisex Graphic Tee
Perfect for field trips, this 100% cotton tee features a detailed gray squirrel print.Check Price and Availability
Squirrel Lover Vintage T-Shirt
A classic design for anyone who loves watching squirrels.Check Price and Availability
Squirrel Shirt. Funny Squirrel Shirt
A humorous option for casual outings.Check Price and Availability
What is the best time of day to see squirrels in Montana?
Early morning (dawn to 9 AM) and late afternoon (3-6 PM) are peak activity times. Squirrels are most visible when foraging. In summer, they may rest during midday heat. In winter, they may shorten activity periods. Listen for rustling leaves or chattering calls to locate them.
See ourtour planning ideasfor the next step.
Gear and field guides
Frequently asked questions
What types of squirrels live in Montana?+
Montana hosts five main squirrel species: the Eastern gray squirrel, Western gray squirrel, Fox squirrel, Red squirrel, and Northern flying squirrel. The Eastern gray is most common in urban areas, while the Red squirrel prefers coniferous forests. The Fox squirrel is found in riparian zones and agricultural edges. The Northern flying squirrel is nocturnal and rarely seen. In Montana, squirrels 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.
How can I tell apart the different squirrels in Montana?+
Focus on size, color, and tail shape. Eastern gray squirrels are medium-sized with gray fur and a bushy tail. Fox squirrels are larger, with reddish-brown fur and a more useful body. Red squirrels are small, rusty-red, and have a distinct white eye ring. Flying squirrels are smaller, with a flat tail and a membrane between legs. The Western gray squirrel is similar to the Eastern but has a white belly and a more silvery coat.
Where in Montana are you most likely to see squirrels?+
Start in parks and residential neighborhoods of cities like Missoula, Bozeman, and Billings. Eastern grays thrive in deciduous trees. For Fox squirrels, check cottonwood stands along the Yellowstone River. Red squirrels are common in ponderosa pine forests near Helena and the Bitterroot Valley. Flying squirrels require mature conifer forests with snags, often in higher elevations. See ourstate animal guidefor the next step.
What is the best season for squirrel sightings in Montana?+
Late summer and early fall (August through October) offer the best odds. Squirrels are most active in the morning and late afternoon gathering food. Winter sightings are possible but less frequent, as some species reduce activity. Spring brings newborn kits, but adults may be more cautious. Year-round, red squirrels are vocal and often visible.
What are the key field marks for each squirrel species?+
Eastern gray: uniform gray with white underparts. Western gray: silver-gray with white belly, very long tail. Fox squirrel: rusty-red with orange belly, large size. Red squirrel: reddish above, white belly, ear tufts in winter. Northern flying squirrel: small, brownish-gray, large black eyes, flattened tail. Use binoculars to observe these details.
How do I separate the Fox squirrel from the Western gray squirrel?+
Fox squirrels have a reddish-brown back and orange belly, while Western grays are silver-gray with a white belly. Fox squirrels are stockier with a shorter tail. In Montana, Western grays are limited to the southwest corner, whereas Fox squirrels are more widespread along river corridors. Check the habitat: Fox squirrels prefer open woodlands, Western grays favor oak forests.
Where can I find more resources on identifying Montana squirrels?+
For deeper dives, check out our mainsquirrel identification huband exploreMontana wildlife guides. If you enjoy wildlife viewing, consider awildlife-themed t-shirtto show your interest.
What is the best time of day to see squirrels in Montana?+
Early morning (dawn to 9 AM) and late afternoon (3-6 PM) are peak activity times. Squirrels are most visible when foraging. In summer, they may rest during midday heat. In winter, they may shorten activity periods. Listen for rustling leaves or chattering calls to locate them. See ourtour planning ideasfor the next step.
Keep exploring
More places to see squirrel
More wildlife in Montana