Diet Overlap

Xerospermophilus spilosoma (spotted ground squirrel)
Perognathus merriami (Merriam's pocket mouse)

Common Diet

Solanum angustifolium (buffalobur nightshade)

Common Habitat

Arizona Mountains forests
Central and Southern mixed grasslands
Chihuahuan desert
Madrean Pine-Oak Woodlands
North America
Sierra Madre Oriental pine-oak forests
Tamaulipan matorral
Tamaulipan mezquital
Western Gulf Coastal grasslands
Western short grasslands

Attributes / relations provided by
♦ 1Spermophilus spilosoma, Donald P. Streubel and James P. Fitzgerald, MAMMALIAN SPECIES No. 101, pp. 1-4 (1978)
♦ 2Perognathus merriami, Troy L. Best and Marian P. Skupski, MAMMALIAN SPECIES No. 473, pp. 1-7 (1994)