Massachusetts’s occurrence tallies for the smoky shrew hold just 32 records, one of the sparsest counts in this atlas. Nearly all of it traces a single landscape: the wooded reservations and wetland edges of the Boston Basin and central-eastern uplands.
Cool, damp ground over open ground
The smoky shrew needs consistently moist, cool soil under a thick layer of leaf litter and rotting logs, conditions that show up on shaded, rocky slopes more than open fields. Blue Hills Reservation is a good match for that: its rocky outcrops and mixed oak-hardwood cover hold damp leaf litter even when the surrounding suburbs dry out in summer. Great Meadows National Wildlife Refuge and Walden Pond State Reservation add the wetland-edge cover the species also uses.
An animal that can’t afford to stop eating
Like every shrew, the smoky shrew runs on a metabolism too fast to fast: it has to eat close to its own weight in insects, worms, and other invertebrates most days just to survive, hunting in short bursts around the clock rather than settling into one daily routine. Records climb through the summer and peak in July and August, when both the shrews and their invertebrate prey are most active near the surface.
Status in Massachusetts
NatureServe ranks the smoky shrew S5, secure, and it’s native to Massachusetts. That rank points to a species tied to a specific damp, cool patch of forest floor rather than one under any particular pressure, even though its low, secretive habits mean it rarely gets recorded.
Full species profile
