Mammals Active during the day

California Ground Squirrel

Otospermophilus beecheyi

iNaturalist Wikipedia

The California Ground Squirrel is the West's most famous burrower, known for its complex social lives and incredible 'snake-fighting' abilities. A common sight in backyards and parks, these intelligent rodents offer endless entertainment for wildlife watchers.

0 Sightings

0 Habitats

Quick Identification

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Size

Total length of 30–48 cm (12–19 in) with a tail of 13–21 cm; weight ranges from 280–730 g (10–26 oz)

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Colors

Mottled fur with a mix of gray, light brown, and dusky hairs; distinctive lighter gray 'cape' over the shoulders and neck; white rings around the eyes

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Key Features

Speckled grayish-brown mottled fur
Distinct white ring around each eye
Light gray fur forming a 'cape' or mantle across the shoulders
Bushy tail that is shorter and less voluminous than a tree squirrel's
Small, rounded ears set low on the head

When You’ll See Them

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Activity pattern Active during the day

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Peak hours 8 AM - 11 AM and 3 PM - 6 PM

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Season March-August (Active year-round in warmer coastal areas)

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Diet Omnivorous, primarily consuming seeds, nuts, grains, fruits, and green vegetation, but also occasionally eating insects, bird eggs, and small lizards.

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Habitat Open grasslands, oak woodlands, rocky outcrops, pastures, and suburban gardens, typically avoiding dense forests.

public Geographic range

Where Does the California Ground Squirrel Live?

Native to the western edge of North America, the California Ground Squirrel is a quintessential resident of the Pacific coast. Its core range spans the entirety of California and extends northward into western Oregon and Washington, with additional populations reaching into northwestern Nevada and the Baja California Peninsula. This adaptable rodent thrives in Mediterranean climates and is frequently found transitioning between wild coastal scrub and human-altered suburban landscapes.

Basemap © OpenStreetMap contributors

2 Countries

1.2M km² Range

Least Concern Conservation

US United States MX Mexico

Elevation range

0 m1,000 m2,000 m4,000 m

Sea level – 2,300 m

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iNaturalist / Verified observation data

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Behavior

California Ground Squirrels are highly social and colonial animals, often living in complex burrow systems that they excavate themselves. Unlike their tree-dwelling cousins, they spend nearly all their time on the ground or just beneath it. They are famous for their 'sentinel' behavior, where one individual stands upright on its hind legs to scan for predators like hawks or coyotes, letting out a sharp, bird-like chirp to warn the rest of the colony of danger.

These squirrels have developed fascinating survival tactics, particularly regarding rattlesnakes. They are known to chew on shed snakeskins and lick their fur to mask their scent, and adults have a high resistance to rattlesnake venom. In a display of 'tail-flagging,' they will vigorously wave their tails at snakes, even heating up their tails through blood flow to confuse the heat-sensing pits of the predator. While they can be bold around humans in parks, they remain wary and quick to retreat to their burrows when startled.

photo_camera EverydayEarth exclusive

Camera Tips

To capture high-quality footage of California Ground Squirrels, place your camera low to the ground, ideally 6 to 12 inches high. Aim the lens toward a known burrow entrance or a flat-topped rock, which these squirrels frequently use as 'lookout' posts. Because they are strictly diurnal, you don't need a heavy-duty infrared flash, but positioning the camera with the sun at its back will prevent washed-out images during their peak morning and afternoon activity hours.

Since these animals are social, you can often capture multiple individuals in a single frame by using a wide-angle lens setting. A 'trigger speed' of 0.3 seconds or faster is recommended, as they are incredibly quick and can scurry out of frame before the camera fires. If your camera supports it, the 'hybrid' mode—taking a high-resolution photo followed by a short video clip—is perfect for documenting both their intricate fur patterns and their frantic, twitchy movements.

In a backyard setting, you can encourage them to pose by placing a handful of native seeds or unsalted sunflower seeds near a natural feature like a log or stone. Be mindful of seasonal changes; in hotter inland areas, they may 'estivate' (sleep through the heat) in mid-summer, while in colder regions, they may hibernate during the winter. Late spring is the best time for camera trapping, as young pups begin emerging from the burrows to play and explore.

Similar Species

Species that look similar or are commonly confused with California Ground Squirrel.

Western Gray Squirrel

Much fluffier, longer tail and solid gray color; strictly arboreal (lives in trees) compared to the ground-dwelling Beechey.

Rock Squirrel

Found further east in the Southwest; lacks the distinctive light gray shoulder 'cape' seen on the California species.

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Frequently Asked Questions

California Ground Squirrels are diurnal, meaning they are active during the day. They typically emerge from their burrows shortly after sunrise to forage and sunbathe, with peak activity occurring in the mid-morning and late afternoon. They retreat underground during the hottest part of the day and stay in their burrows through the night.

You can attract them by providing low-lying cover like rock piles or logs and offering native seeds, nuts, or grains. However, be cautious, as their burrowing can damage gardens and foundations. Using a platform feeder near the ground is an effective way to keep them in view of your camera without encouraging them to dig near your home.

Their diet is highly seasonal. In the spring, they focus on green vegetation and flowers. As the season progresses, they shift to seeds, grains, and nuts (like acorns). They are also opportunistic and will eat insects, fruit from gardens, and occasionally small vertebrates or bird eggs.

Yes, they are extremely well-adapted to suburban environments. They are often found in parks, golf courses, and residential backyards, especially those bordering open spaces or hillsides. Their ability to live alongside humans has helped their population remain stable.

The easiest way to tell them apart is by their habitat and tail. California Ground Squirrels live in the ground and have shorter, less bushy tails. They also have a distinctive white 'eye ring' and a mottled gray 'cape' on their shoulders, whereas Western Gray Squirrels have much fluffier tails, uniform gray fur, and live primarily in trees.

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