Long-tailed weasels are Indiana’s largest weasel species, hunting mice and voles almost exclusively and following prey into whatever field, marsh edge, or brush pile holds the densest rodent population, which is why records from Indiana Dunes National Park, which holds 4, and a scatter of counties from LaGrange to Pike trace grassland and wetland edges rather than deep forest.
The state has 15 records from 2000 on, all research-grade iNaturalist observations, and they lean toward summer, peaking in July with 4, the stretch when this year’s kits are old enough to hunt alongside their mother and become easier to spot. NatureServe rates the species S4, apparently secure, statewide.
Full species profile
