Texas mammals

North American Least Shrew in Texas

Cryptotis parvus

Native to Texas S4 Apparently Secure in Texas

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

North American Least Shrew in Texas, by the numbers

Common in Texas 62nd most recorded of 197 mammals logged in Texas

701 occurrence records
254 with iNaturalist photos
Jun 4, 2026 Last seen in Texas

Records from 2000–2026.

701 total records count every Texas occurrence from GBIF and iNaturalist; the map plots a georeferenced sample of 300; the monthly chart covers the 544 records with a full observation date.

When to look for the North American Least Shrew in Texas

Most sightings fall in January.

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

Monthly Texas records (table)
MonthRecords
January113
February61
March57
April59
May22
June30
July14
August19
September20
October43
November58
December48

Monthly north american least shrew occurrence records (iNaturalist and GBIF) in Texas, 2000–2026.

Seasonality

Year-round in Texas, with recorded sightings peaking in January.

Occurrence map

Where North American Least Shrew has been recorded in Texas

300 records mapped · zoom and drag to explore

299 Texas records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
Lake Arrowhead State Park 4
San Antonio Missions National Historical Park 1
Aransas National Wildlife Refuge 1
Stephen F Austin Mast Arboretum 1
McKinney Falls State Park 1
Bentsen - Rio Grande Valley State Park 1
Palo Alto Battlefield National Historical Park 1
Big Thicket National Preserve 1

Protected places with the most north american least shrew 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 Texas

CountyRecords
Brazos County 57
Polk County 51
Wichita County 39
Denton County 29
Harris County 27
Travis County 23
Collin County 21
Hardin County 18
Refugio County 18
Tyler County 17
Coryell County 16
Williamson County 15
106 other counties 370

The complete county distribution, spread across 118 Texas counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

The North American least shrew is one of the continent’s smallest mammals, an insect-eating hunter that stays hidden under matted grass and leaf litter rather than digging burrows of its own. In Texas its 701 records cluster at Aransas, Padre Island, and Brazoria, three coastal refuges whose mowed margins and dense marsh grass give the shrew the ground cover it depends on to move unseen.

Sightings spike in January and again in November, both cooler months when a hungry, fast-metabolism shrew has to forage more often rather than months when the species is somehow more common; a shrew this small burns through food constantly regardless of season.

NatureServe lists it S4, Apparently Secure, in Texas, and it’s recorded as native across its Gulf Coast and eastern range in the state.

Occurrence data from iNaturalist.

More mammals in Texas 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"