Delaware mammals

Meadow Vole in Delaware

Microtus pennsylvanicus

Native to Delaware SNR Unranked in Delaware

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

Meadow Vole in Delaware, by the numbers

Occasional in Delaware 30th most recorded of 62 mammals logged in Delaware

25 occurrence records
16 with iNaturalist photos
Apr 24, 2026 Last seen in Delaware

When to look for the Meadow Vole in Delaware

Most sightings fall in January.

25 Delaware occurrence records (iNaturalist and GBIF) by month of year. Shows when the species is recorded, not a guarantee of presence. Based on a small number of dated records; the seasonal pattern may not be representative.

Monthly Delaware records (table)
MonthRecords
January5
February0
March3
April3
May3
June1
July1
August2
September1
October3
November2
December1

Monthly meadow vole occurrence records (iNaturalist and GBIF) in Delaware.

Seasonality

Year-round in Delaware, with recorded sightings peaking in January, with a smaller rise in October and March–May.

Occurrence map

Where Meadow Vole has been recorded in Delaware

25 records mapped · zoom and drag to explore

23 Delaware records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
Lums Pond State Park 1
Auburn Heights 1

Protected places with the most meadow vole 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 Delaware

CountyRecords
New Castle County 19
Kent County 3
Sussex County 1
Other localities 2

The complete county distribution, spread across 3 Delaware counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

Most of the confirmed meadow vole locations in Delaware sit in the damp grassland of Coastal Plain refuges, Bombay Hook and Prime Hook National Wildlife Refuges, and in the wet meadow edges near Trap Pond State Park close to the Great Cypress Swamp. That pattern fits a species tied to thick, damp grass, ground the Piedmont’s drier wooded hills in the north supply less of.

Runways through the grass

Meadow voles build and maintain networks of narrow surface runways through matted grass, close-cropped paths that let them move quickly between feeding spots while staying hidden from hawks and foxes overhead. They feed mainly on grass stems, roots, and seeds, and they’re known for breeding through much of the year whenever food and cover hold up, not just in one tight season. That steady breeding pattern makes them an important food source for the state’s hawks, owls, and foxes.

Low counts spread thin across the year

Delaware’s confirmed records stay low in every month rather than clustering into an obvious peak, which fits a species that can be active and breeding across most of the calendar. The small total count here likely says more about how well voles hide in dense grass runways than about how many actually live in the state’s marshes and wet meadows.

Status in Delaware

NatureServe hasn’t assigned the meadow vole a numeric state rank in Delaware. It isn’t listed as nonindigenous by USGS NAS and is treated as native to the wet grassland habitat it uses here.

Occurrence data from iNaturalist and GBIF.

More mammals in Delaware in the atlas

Data & sources

The data and visualizations on this page draw on these open sources: