Cactus deermouse records in Texas cluster around Balcones Canyonlands National Wildlife Refuge, the Hill Country, and Devils River State Natural Area, limestone canyon country where rocky washes and woodrat middens give this small desert mouse both shelter and a steady supply of seeds and insects. Its oversized ears and long, nearly bare tail set it apart from the furrier, more sharply two-toned tails of other desert deer mice it can be confused with.
Texas reports peak in January and March, an unusual pattern next to the summer-heavy activity many desert rodents show, and one that more likely reflects survey timing and detection conditions than a true winter population surge. With 1,355 records, this is one of the more heavily documented small mammals in the Hill Country sample, placing it in the occasional tier statewide. NatureServe rates it secure (S5) in Texas, consistent with a species that can shelter in everything from rock crevices to abandoned buildings across the Edwards Plateau.
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