Cinereus shrews, also called masked shrews, carry no NatureServe state rank in Iowa, SNR unranked, despite being one of the more GBIF-documented small mammals in this tier, 161 records against just 25 from iNaturalist, a ratio that fits a species too tiny and secretive for casual sightings to capture reliably.
May alone accounts for 11 of the year’s 23 monthly-tallied records, nearly half, likely tracking spring trapping surveys and this shrew’s near-constant foraging as it hunts insects to fuel a metabolism too fast to allow true winter dormancy.
Full species profile
