The southern short-tailed shrew has 69 Louisiana records since 2000, every one an iNaturalist observation, with East Baton Rouge and St. Tammany parishes leading at 14 each. That volume traces where people have looked closely, not a direct count of how many shrews live in any one place.
A leaf-litter hunter across the state’s hardwood floor
This shrew tunnels through loose, moist soil and leaf litter, hunting insects, earthworms, and snails, and it delivers a mildly toxic bite that helps subdue larger prey. That means it needs consistently damp ground under a hardwood canopy, conditions found in the hardwood-lined drainages that cut through Kisatchie National Forest’s piney hills, in the live oak and hackberry forest at Fontainebleau State Park on Lake Pontchartrain’s north shore, and on the slightly higher, drier hardwood ridges bordering the Atchafalaya Basin’s wetter backswamp.
Spring and late-fall peaks
Reports peak in April and May, drop to none in July, and climb again to 11 in November. Cooler, wetter ground in spring and late fall likely brings the shrew closer to the surface litter layer where people are more likely to encounter it, rather than signaling any change in how many shrews are out there.
Status in Louisiana
The southern short-tailed shrew is native to Louisiana and carries a NatureServe rank of S4, apparently secure, in the state.
