West Virginia mammals

Masked Shrew in West Virginia

Sorex cinereus

Native to West Virginia S4 Apparently Secure in West Virginia

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

Masked Shrew in West Virginia, by the numbers

Occasional in West Virginia 32nd most recorded of 77 mammals logged in West Virginia

60 occurrence records
7 with iNaturalist photos
May 22, 2025 Last seen in West Virginia

Records from 2000–2026.

60 total records count every West Virginia occurrence from GBIF and iNaturalist; the monthly chart covers the 56 records with a full observation date.

When to look for the Masked Shrew in West Virginia

Most sightings fall in October.

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

Monthly West Virginia records (table)
MonthRecords
January0
February0
March0
April8
May3
June4
July4
August8
September1
October28
November0
December0

Monthly masked shrew occurrence records (iNaturalist and GBIF) in West Virginia, 2000–2026.

Seasonality

Year-round in West Virginia, with recorded sightings peaking in October.

Occurrence map

Where Masked Shrew has been recorded in West Virginia

60 records mapped · zoom and drag to explore

60 West Virginia records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
Monongahela National Forest 19
Cheat Wildlife Management Area 4
Little River Wildlife Management Area 3
Tea Creek Wildlife Management Area 2
Dolly Sods Wilderness 1

Protected places with the most masked 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 West Virginia

CountyRecords
Pocahontas County 23
Randolph County 22
Tucker County 4
Pendleton County 3
Hampshire County 2
Putnam County 1
Marion County 1
Webster County 1
Monroe County 1
Greenbrier County 1
Monongalia County 1

The complete county distribution, spread across 11 West Virginia counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

Cinereus shrews, also called masked shrews, are heavily documented in West Virginia relative to most small mammals in this tier, 60 records, but 58 of them come from GBIF rather than casual photographs, meaning trapping surveys, not people spotting the animal, drive nearly everything known here. NatureServe rates the state population S4, apparently secure, and Dolly Sods Wilderness’s high-elevation bog and heath habitat provides exactly the cool, moist ground cover this shrew needs.

October alone accounts for 28 of the 60 records, nearly half the year’s total, with nothing at all recorded from January through March, a pattern that plausibly reflects a concentrated fall trapping survey rather than any real seasonal surge in shrew activity, since this species stays active year-round without hibernating.

Occurrence data from iNaturalist and GBIF.

More mammals in West Virginia 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"