Northern grasshopper mice are unusual among rodents: this small predator hunts insects, scorpions, and even other mice across the open desert grassland and Trans-Pecos scrub around Big Bend, Guadalupe Mountains National Park, and the Davis Mountains. Males are known to stand on their hind legs and give a thin, high-pitched call, a habit that earned them the nickname “wolf mouse.”
Nearly all of the 1,457 Texas records come through GBIF rather than iNaturalist, which suggests specimen and survey data are doing most of the documenting here rather than casual sightings, a pattern that fits a nocturnal, hard-to-photograph hunter. Records cluster hardest in March, with a smaller rise in November. With a mostly desert range and no special state listing, that swing likely tracks fieldwork timing as much as anything the mouse itself is doing.
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