Long-tailed weasels are opportunistic hunters that kill mice and other small prey with a single bite to the skull, and they range across more habitat types than almost any other North American weasel, from wetlands to alpine slopes. In Texas, the confirmed records sit almost entirely in the Rio Grande Valley brushland: Laguna Atascosa National Wildlife Refuge, the Lower Rio Grande Valley itself, and Chaparral Wildlife Management Area.
The 91 Texas records include a comparatively strong share from iNaturalist, 33 of them, and the most recent sighting is from July 2026, so this is a species Texas keeps picking up in real time rather than only through old specimens. The monthly counts run fairly flat with a mild June bump, not enough of a swing to call a real seasonal pattern given the sample size.
NatureServe ranks the species S5, Secure, in Texas, and these records are drawn only from iNaturalist, a smaller but more current window into where the weasel is actually being seen.
Full species profile
