Wisconsin’s 15 records fit open, prey-rich settings such as Horicon’s marsh margins, Kettle Moraine fields, and southern prairie remnants, but they are too thin to define a reliable seasonal pattern. Scattered detections across winter and the growing season are consistent with a year-round resident that is usually concealed in dense ground cover or small-mammal burrows.
Only 15 records come from iNaturalist, and these are encounters rather than a Least Weasel abundance estimate. Incidental trapping, predator remains, snow tracks, and rare chance sightings dominate detection, making observer method far more visible in the map than the underlying population.
Full species profile
