Montane shrews are tiny, fast-metabolism hunters that spend most of their lives out of sight in damp leaf litter and streamside cover, so almost everything known about where they live in Wyoming comes from trapping surveys rather than casual sightings. Of the 945 records behind this page, every one is a GBIF specimen record and none came through iNaturalist, which fits a shrew’s habits: it’s active day and night year-round but rarely seen and even more rarely photographed.
Streamside forest, not open range
Wyoming reports cluster around damp, shaded ground: the corridors near Seedskadee National Wildlife Refuge, the National Elk Refuge, and the Yellowstone River, plus the coniferous, subalpine forest that covers much of the state’s mountain ranges. That’s the kind of cool, moist cover this species needs to hunt insects without drying out. Wyoming’s vast sagebrush basins, by contrast, hold almost none of the state’s records, since a montane shrew depends on shade and leaf litter that open, dry range doesn’t provide.
A trapping-season spike, not a summer bloom
Records climb sharply in July, which alone accounts for 401 of the 945 Wyoming records. That’s almost certainly the mark of when field crews run small-mammal trap lines, not a summer-only appearance by the shrew itself, since this species stays active in every season.
Status in Wyoming
NatureServe ranks the montane shrew S5, Secure, and it’s native to Wyoming. The scarcity of sightings here says more about how well this animal hides than about how many are actually out there.
Full species profile
