South Dakota mammals

Olive-backed Pocket Mouse in South Dakota

Perognathus fasciatus

Native to South Dakota S4 Apparently Secure in South Dakota

Not listed as nonindigenous in South Dakota by USGS NAS; native to its South Dakota 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.

Olive-backed Pocket Mouse in South Dakota, by the numbers

Occasional in South Dakota 49th most recorded of 100 mammals logged in South Dakota

35 occurrence records

Records from 2000–2026.

When to look for the Olive-backed Pocket Mouse in South Dakota

Most sightings fall in June.

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

Monthly South Dakota records (table)
MonthRecords
January0
February0
March0
April0
May1
June20
July6
August7
September1
October0
November0
December0

Monthly olive-backed pocket mouse occurrence records (iNaturalist and GBIF) in South Dakota, 2000–2026.

Seasonality

Year-round in South Dakota, with recorded sightings peaking in June.

Occurrence map

Where Olive-backed Pocket Mouse has been recorded in South Dakota

35 records mapped · zoom and drag to explore

35 South Dakota records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
Wind Cave National Park 1

Protected places with the most olive-backed pocket mouse 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 South Dakota

CountyRecords
Harding County 18
Bennett County 6
Tripp County 3
Walworth County 2
Fall River County 1
Potter County 1
Custer County 1
Todd County 1
Jackson County 1
Shannon County 1

The complete county distribution, spread across 10 South Dakota counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

Olive-backed pocket mouse burrows in sandy soil, spending daylight hours underground and foraging for seeds only after dark, a habit that keeps this small rodent under-detected even in good habitat. South Dakota records span counties from Harding in the northwest to the southern tier, with Wind Cave National Park the only named place tally. NatureServe ranks the species S4, Apparently Secure, statewide.

Its 4 logged records fall entirely in July and August, though a count this small says more about how rarely a nocturnal burrower gets photographed than about any narrow true activity window.

More mammals in South Dakota 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"