Merriam's ground squirrel

Urocitellus canus

LCLeast Concern

Merriam's ground squirrel is a small, plain-backed squirrel of the inland Northwest's dry grasslands and shrub country. It lacks the bold stripes of many ground squirrels and stays close to a burrow in open ground. Verified modern records center on Oregon and Idaho, making reports from Nevada especially important to examine rather than accept from a name match alone.

US Range

Occurrence data: GBIF (280 georeferenced US records, 2000-2026). Darker shading marks states with more recorded observations.

Explore by state

Merriam's ground squirrel across 3 states

Occurrence records, conservation status, and the places it turns up, state by state. Open a state for detail, or visit its full page.

IUCN Red List status

  1. LC
  2. NT
  3. VU
  4. EN
  5. CR
  6. EW
  7. EX

LC – Least Concern

Widespread and abundant; not at risk.

Elevation

From 200 georeferenced records, the Merriam's ground squirrel is recorded from 643 m2,110 ft to 1,949 m6,394 ft, with half of sightings below 1,009 m3,310 ft.

Each band shows the share of georeferenced sightings that fall within it. Records cluster where people live and hike, so low, populated elevations are over-represented. Read this as observation density, not true abundance.

Best encounter

Where and when to see a Merriam's ground squirrel

Your best chance: Oregon.

Where
OregonOR

Life history

The Merriam's ground squirrel (144–210 g5.1–7.4 oz) is an omnivore that first breeds around 1 years, carries a 23-day gestation, and bears about 8 young per litter.

Reproduction

Gestation
23days
Litter size
8youngaverage
Litters / year
1litter
Age at first breeding
1years♀ 1 · ♂ 2 yr

Diet composition

Omnivore

By foraging composition: 40% plant material, 40% seeds & grain, 20% invertebrates.

  • Plant material40%
  • Seeds & grain40%
  • Invertebrates20%

Most active during the day.

Typical values for the species, not local measurements.

Commonly confused with

Animals people sometimes mistake for the merriam's ground squirrel, and how to tell them apart.

A small squirrel in open country

The coat is muted gray-brown without strong dorsal stripes, and the tail is relatively short. Its size and plain pattern can make field identification difficult among western ground squirrels. An upright lookout posture and retreat to a burrow reveal its ground-living habits, but location and careful detail remain essential.

The accepted range is north of Nevada

Most verified records come from eastern Oregon and southwestern Idaho in sagebrush, grassland, and agricultural edges. The national range extraction found no established Nevada cluster. That conflict may reflect an old record, taxonomic confusion, or a roster problem. Occurrence counts alone can’t resolve it, so the original observation needs review.

A seasonal life underground

The squirrel feeds by day on seeds, green plants, and some insects. Burrows provide nest chambers and shelter from heat, cold, and predators. It spends a large part of the year below ground, emerging when spring growth offers food. That schedule makes survey timing especially important because an inactive colony is easy to miss.

Open habitat under pressure

Cultivation can create food along some edges while removing native grass and shrub cover elsewhere. Fire, invasive plants, and development also change the soil and vegetation around burrow sites. The species isn’t considered threatened across its core. Range-edge claims still deserve care because they affect state conservation decisions.

Data & sources

The data and visualizations on this page draw on these open sources:

  • GBIFCC-BY 4.0occurrence records behind the range map, elevation, and record counts
  • PhyloPicCC0 / CC-BY per itemthe to-scale silhouettesAndrew A. Farke (human silhouette, CC-BY 3.0)
  • AnAge (HAGR)CC-BY 3.0longevity, maturity, and gestation figures
  • IUCN Red Listattributed factthe global conservation status
  • Amniote Life-History DatabaseCC0 · public domainreproduction figures
  • EltonTraitsCC0 · public domaindiet and foraging-activity data