Arizona mammals

Harris' Antelope Squirrel in Arizona

Ammospermophilus harrisii

Native to Arizona S5 Secure in Arizona

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

Harris' Antelope Squirrel in Arizona, by the numbers

Common in Arizona 12th most recorded of 158 mammals logged in Arizona

3,726 occurrence records
2,808 with iNaturalist photos

3,726 total records count every Arizona occurrence from GBIF and iNaturalist; the map plots a georeferenced sample of 300; the monthly chart covers the 3,697 records with a full observation date.

When to look for the Harris' Antelope Squirrel in Arizona

Most sightings fall in March to May.

3,697 Arizona occurrence records (iNaturalist and GBIF) by month of year. Shows when the species is recorded, not a guarantee of presence.

Monthly Arizona records (table)
MonthRecords
January319
February282
March457
April612
May453
June296
July240
August228
September156
October193
November261
December200

Monthly harris' antelope squirrel occurrence records (iNaturalist and GBIF) in Arizona.

Seasonality

Year-round in Arizona, with recorded sightings peaking in March–May.

Occurrence map

Where Harris' Antelope Squirrel has been recorded in Arizona

300 records mapped · zoom and drag to explore

299 Arizona records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
Saguaro National Park 224
State Trust Land 173
Organ Pipe Cactus National Monument 63
Coronado National Forest 22
Picacho Peak State Park 17
Lake Mead National Recreation Area 16
Pusch Ridge Wilderness 15
Cabeza Prieta Wilderness Area 13

Protected places with the most harris' antelope 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 Arizona

CountyRecords
Pima County 1,294
Maricopa County 1,265
Cochise County 315
Pinal County 230
Mohave County 215
Yuma County 146
Yavapai County 77
La Paz County 69
Graham County 28
Gila County 26
Santa Cruz County 21
Coconino County 4
Greenlee County 4
Other localities 32

The complete county distribution, spread across 13 Arizona counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

Arizona’s overlay contains 3,726 Harris’s antelope squirrel records, including 2,808 from iNaturalist and 3,027 from GBIF; the source totals overlap and should not be added. Records occur in every month, rising from 282 in February to 612 in April before falling to a low of 156 in September. That submission pattern documents observations, not the number of squirrels in Arizona.

Pima and Maricopa counties dominate the county data with 1,294 and 1,265 records, far ahead of Cochise at 315. Saguaro National Park is likewise the leading named place with 82 records, compared with 25 for Coronado National Forest and 22 for Organ Pipe Cactus National Monument. These concentrations identify where the open-data record is strongest, not the boundaries or density of the species’ state range.

More mammals in Arizona 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"