Unlike most voles, the woodland vole spends much of its life underground, digging shallow tunnels through leaf litter and topsoil rather than running surface trails through grass. That underground habit is likely part of why Illinois has only 84 logged records despite the species being considered secure statewide.
Reports cluster around Shawnee National Forest, Midewin National Tallgrass Prairie, and the Upper Mississippi River refuge lands, spots with the loose, leaf-covered forest floor this vole needs for tunneling. November and December carry the heaviest share of records by a wide margin, likely reflecting when surveyors were digging test plots rather than when the animal itself is most active, since a burrowing species like this rarely turns up in casual sightings.
NatureServe ranks Illinois’ population S5, secure, and it’s treated as native rather than introduced. Because so much of its life happens out of sight below the surface, the low record count here says more about how hard this vole is to detect than about how common it actually is.
