Long-tailed weasels rack up 129 records in New Hampshire, more than nearly every other species in this rank tier, yet the bulk, 123 of them, come from GBIF rather than iNaturalist, meaning trapping and specimen data drive most of what’s documented rather than people spotting the animal. NatureServe rates the state population S5, secure, a healthier read than the “rare” bucket label above suggests. That bucket reflects the weasel’s occurrence-count ranking relative to other New Hampshire mammals, not real scarcity.
Records show two distinct peaks, March and June, each with 18 sightings, bracketing the breeding season; the year’s low point comes in September (just 5), a gap that likely reflects reduced trapping activity rather than any change in the weasel’s own presence.
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