Arizona mammals

Little pocket mouse in Arizona

Perognathus longimembris

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.

Little pocket mouse in Arizona, by the numbers

Occasional in Arizona 68th most recorded of 158 mammals logged in Arizona

122 occurrence records
1 with iNaturalist photos
Aug 12, 2024 Last seen in Arizona

Records from 2000–2026.

When to look for the Little pocket mouse in Arizona

Most sightings fall in May.

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

Monthly Arizona records (table)
MonthRecords
January0
February0
March1
April33
May71
June5
July0
August2
September4
October6
November0
December0

Monthly little pocket mouse occurrence records (iNaturalist and GBIF) in Arizona, 2000–2026.

Seasonality

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

Occurrence map

Where Little pocket mouse has been recorded in Arizona

122 records mapped · zoom and drag to explore

122 Arizona records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
State Trust Land 15
Paria Canyon - Vermilion Cliffs Wilderness Area 9

Protected places with the most little 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 Arizona

CountyRecords
La Paz County 50
Mohave County 31
Coconino County 23
Yuma County 17
Pima County 1

The complete county distribution, spread across 5 Arizona counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

Little pocket mouse holds a respectable mid-tier record in Arizona’s low desert scrub and sandy washes, one of the smallest rodents in North America and a species survey trapping documents far more reliably than casual sightings.

The record spikes hard in April and May, 33 and 71 sightings respectively, before dropping to single digits the rest of the year, a pattern almost certainly driven by spring trapping-survey timing rather than a true seasonal population surge in a species that is active whenever nighttime temperatures allow.

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"