North Dakota mammals

American Red Squirrel in North Dakota

Tamiasciurus hudsonicus

Native to North Dakota SNR Unranked in North Dakota

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

American Red Squirrel in North Dakota, by the numbers

Common in North Dakota 23rd most recorded of 92 mammals logged in North Dakota

163 occurrence records
118 with iNaturalist photos
Jul 7, 2026 Last seen in North Dakota

163 total records count every North Dakota occurrence from GBIF and iNaturalist; the map plots a georeferenced sample of 160; the monthly chart covers the 160 records with a full observation date.

When to look for the American Red Squirrel in North Dakota

Most sightings fall in June to August.

160 North Dakota occurrence records (iNaturalist and GBIF) by month of year. Shows when the species is recorded, not a guarantee of presence.

Monthly North Dakota records (table)
MonthRecords
January3
February9
March18
April10
May13
June17
July24
August18
September13
October5
November12
December18

Monthly american red squirrel occurrence records (iNaturalist and GBIF) in North Dakota.

Seasonality

Year-round in North Dakota, with recorded sightings peaking in June–August, with a smaller rise in December and March.

Occurrence map

Where American Red Squirrel has been recorded in North Dakota

160 records mapped · zoom and drag to explore

160 North Dakota records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
Icelandic State Park 7
Turtle River State Park 5
Theodore Roosevelt National Park 1
Thompson Lake 1
Fort Ransom State Park 1
North Dakota State Forest Service Land 1

Protected places with the most american red 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 North Dakota

CountyRecords
Cass County 43
Grand Forks County 40
Walsh County 28
Pembina County 11
Richland County 5
Ransom County 4
Bottineau County 4
Ward County 3
Rolette County 3
Sargent County 2
McHenry County 2
Billings County 1
3 other counties 17

The complete county distribution, spread across 15 North Dakota counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

American red squirrels show up 163 times in North Dakota’s occurrence data, split fairly evenly between iNaturalist and GBIF entries. That’s a solid count for a small mammal in a state where its preferred conifer cover barely exists.

Wherever the conifers survive

North Dakota is grassland country, and true conifer forest is scarce, so red squirrels concentrate in the state’s few wooded pockets that offer it: the juniper-studded north-facing slopes of the Little Missouri Badlands around Theodore Roosevelt National Park, and the mixed hardwood-and-conifer draws of the Pembina Hills escarpment near Icelandic State Park, one of the few places in the state where scattered white spruce still grow. Sheyenne National Grassland, farther southeast, is mostly oak savanna and open prairie, a thinner stretch of range for a squirrel that leans on cone crops.

A cache builder, not a hoarder of the moment

Red squirrels don’t just eat conifer seeds; they clip whole cones and pile them into middens, a stockpile they defend loudly and return to all winter. That habit is why the species stays active year-round instead of denning up, and it explains the scattered late-year records here: a squirrel working a midden through fall and into winter is still a squirrel a hiker can run into on a cold day in the Badlands.

Status in North Dakota

North Dakota’s NatureServe listing for the American red squirrel is SNR, unranked, rather than a numeric rank, though the species is secure globally at G5. It’s native to its North Dakota range, persisting wherever the state’s scarce conifer cover gives it a cone crop to work.

Occurrence data from iNaturalist and GBIF.

American Red Squirrel in other states

View all states →

More mammals in North 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"