New Mexico mammals

Thirteen-lined ground squirrel in New Mexico

Ictidomys tridecemlineatus

Native to New Mexico S4 Apparently Secure in New Mexico

Not listed as nonindigenous in New Mexico by USGS NAS; native to its New Mexico range.

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.

Thirteen-lined ground squirrel in New Mexico, by the numbers

Rare in New Mexico 124th most recorded of 176 mammals logged in New Mexico

260 occurrence records
26 with iNaturalist photos
Jul 1, 2026 Last seen in New Mexico

Records from 2000–2026.

260 total records count every New Mexico occurrence from GBIF and iNaturalist; the monthly chart covers the 250 records with a full observation date.

When to look for the Thirteen-lined ground squirrel in New Mexico

Most sightings fall in June to July.

250 New Mexico occurrence records (iNaturalist and GBIF) by month of year, 2000–2026. Shows when the species is recorded, not a guarantee of presence.

Monthly New Mexico records (table)
MonthRecords
January28
February2
March9
April37
May25
June49
July52
August20
September16
October5
November6
December1

Monthly thirteen-lined ground squirrel occurrence records (iNaturalist and GBIF) in New Mexico, 2000–2026.

Seasonality

Year-round in New Mexico, with recorded sightings peaking in June–July, with a smaller rise in April.

Occurrence map

Where Thirteen-lined ground squirrel has been recorded in New Mexico

260 records mapped · zoom and drag to explore

260 New Mexico records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
State Trust Land 3
Fort Union National Monument 2
Eagle Nest Lake 2
Eagle Nest Lake State Park 1
Río Grande Del Norte National Monument 1

Protected places with the most thirteen-lined ground squirrel sightings, from the USGS Protected Areas Database plus named mountain ranges, good spots to look, not a full breakdown, so they don't sum to the total.

Where it's recorded in New Mexico

CountyRecords
Roosevelt County 64
Eddy County 61
Colfax County 25
Union County 20
San Miguel County 17
Catron County 16
Lea County 15
Rio Arriba County 10
Torrance County 7
Taos County 6
Quay County 6
Curry County 5
2 other counties 8

The complete county distribution, spread across 14 New Mexico counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

Santa Fe National Forest, Las Vegas National Wildlife Refuge, and the Pecos River headwaters cluster in north-central New Mexico, grassland country at the edge of this ground squirrel’s mostly Great Plains range. That peripheral position likely explains why the species sits in the “rare” band among New Mexico mammals despite being a day-active animal that’s easy to spot when present.

Records climb through spring and peak in July, a pattern that roughly matches when this hibernating squirrel is actually active above ground each year, though the count is too small to treat as a precise measure of timing.

New Mexico’s NatureServe rank is S4, Apparently Secure, holding steady even though occurrence records here are thinner than in the species’ core Plains states.

Occurrence data from iNaturalist and GBIF.

More mammals in New Mexico in the atlas

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
  • iNaturalistCC0 / CC-BY / CC-BY-SAobservations, photos, and audio recordings
  • NatureServe ExplorerCC-BYthe state conservation rank
  • IUCN Red Listattributed factthe global conservation status
  • USGS NASpublic domainnative / introduced status
  • Natural Earthpublic domainthe relief basemap
  • USFSpublic domainnational-forest boundaries
  • USGS Protected Areas Databasepublic domainthe named parks, forests, and refuges behind "notable places to look"