Maine mammals

Meadow Vole in Maine

Microtus pennsylvanicus

Native to Maine S5 Secure in Maine

Not listed as nonindigenous in Maine by USGS NAS; native to its Maine 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 Maine, by the numbers

Common in Maine 23rd most recorded of 85 mammals logged in Maine

608 occurrence records
179 with iNaturalist photos
Mar 25, 2026 Last seen in Maine

608 total records count every Maine occurrence from GBIF and iNaturalist; the map plots a georeferenced sample of 300; the monthly chart covers the 589 records with a full observation date.

When to look for the Meadow Vole in Maine

Most sightings fall in July to September.

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

Monthly Maine records (table)
MonthRecords
January8
February5
March12
April16
May39
June70
July101
August107
September163
October28
November20
December20

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

Seasonality

Year-round in Maine, with recorded sightings peaking in July–September.

Occurrence map

Where Meadow Vole has been recorded in Maine

300 records mapped · zoom and drag to explore

300 Maine records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
Acadia National Park 8
Baxter State Park 4
Fort Knox 2
Massabesic Experimental Forest 2
Downeast Sunrise Trail 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 Maine

CountyRecords
Cumberland County 76
Aroostook County 66
Lincoln County 60
Penobscot County 52
Hancock County 50
Piscataquis County 49
Somerset County 48
Oxford County 32
Sagadahoc County 29
York County 22
Kennebec County 20
Knox County 19
4 other counties 85

The complete county distribution, spread across 16 Maine counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

Meadow voles account for 608 Maine records, a solid but not exceptional showing in this atlas, most of them GBIF specimen and occurrence entries rather than casual sightings. That split reflects how this small, grass-dwelling rodent gets documented: through trapping surveys and museum records far more often than a chance trailside glimpse.

Wet meadows and bog edges, not deep woods

Meadow voles need dense, damp grass and sedge cover, the kind found in lakeside meadows and bog margins rather than closed conifer canopy. That’s likely why records concentrate around Acadia’s coastal meadows and Baxter’s boggy clearings rather than the deep, unbroken spruce-fir interior of the North Woods, where the ground layer stays too shaded and dry for the tunnels and trails through grass this vole depends on.

Active all winter, just out of sight

Records climb through summer and peak sharply in September, then drop off but never fully disappear through the coldest months. Meadow voles don’t hibernate. They keep moving all winter through tunnels under the snowpack, feeding on grass and bark hidden from view, so the thin trickle of records that continues into January and February likely reflects real activity that’s simply harder to see, not an animal that’s gone quiet for the winter.

Status in Maine

NatureServe ranks the meadow vole S5 in Maine, secure, and it’s native throughout the state. As one of the most important prey species for hawks, owls, and weasels, a vole that stays active through a Maine winter, even if only its tunnels show it, matters far beyond its own small size.

Occurrence data from iNaturalist and GBIF.

More mammals in Maine 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"