Indiana’s least shrew record is thin, just 5 entries from 2000 on, all research-grade iNaturalist observations, and every one of them comes from the southern half of the state: Lawrence, Monroe, Dubois, Clark, and Switzerland counties. That pattern fits a species built for the grasslands of the South and southern Plains, reaching only the northern edge of its range here.
Dense grass, low to the ground
Least shrews need dense, low grass cover to run their narrow surface runways, the thick, matted growth of old fields, grassy margins, and prairie remnants that lets them move around hidden from predators. That habit is a big part of why so few turn up: Indiana’s 5 recent records fall one apiece in February, June, August, September, and October, too few to show a season.
A social shrew at the cool edge of its comfort zone
Unlike most shrews, which fight off their own kind, least shrews often nest and huddle in groups, a habit that likely helps them survive cold snaps that push closer to their tolerance limit this far north than they would in Texas or Florida. In Indiana, the recent records come from the southern hill country and the Ohio River valley, not the northern prairies.
Status in Indiana
NatureServe ranks the North American least shrew S4, apparently secure, and native to Indiana. Its foothold here depends on holding onto grassy, low-cover habitat at the edge of a range centered hundreds of miles to the south, which makes the grassy openings of southern Indiana more important to its presence here than the species’ broad Least Concern status might suggest.
Full species profile
