Meadow voles show up often in Massachusetts’s occurrence data, with over 1,600 records, though that’s still a fraction of how many are likely out there. This is one of the most numerous small mammals in North America, and also one of the least noticed.
Grass and marsh, from salt water to upland field
Records span a wide range of grassy Massachusetts habitat, the salt marsh grass at Parker River National Wildlife Refuge and Monomoy National Wildlife Refuge, and the upland fields and meadows around Wachusett Mountain State Reservation. A meadow vole needs thick grass cover to hide its runways in, and Massachusetts offers that from the tidal high marsh all the way up to a mowed inland hayfield.
Active all year, hidden under the snow
Unlike many small Massachusetts mammals, the meadow vole doesn’t hibernate or slow down for winter. It keeps moving through a network of surface runways and tunnels under the snow, staying active and breeding through the coldest months as long as the grass cover above holds.
Records track the growing season more than the vole’s activity
Reports rise through June and July and fall off toward winter, even though meadow voles are working under the snow the whole time. Thick snow cover hides both the runways and the animal from anyone walking the same field in January that they’d have no trouble finding voles in come July.
Status in Massachusetts
NatureServe lists the meadow vole as SU, unrankable, in Massachusetts, a label that reflects a lack of dedicated statewide survey data rather than any real scarcity. Few Massachusetts mammals are actually more numerous. Vole numbers can cycle through boom years with several times the animals a lean year holds, and thin survey coverage makes that swing even harder to pin down from occurrence records alone.
