Diet Overlap

Ictidomys tridecemlineatus (thirteen-lined ground squirrel)
Crotalus horridus (Timber rattlesnake (atricaudatus))

Common Diet

Passer domesticus (House Sparrow)
Sylvilagus floridanus (Eastern Cottontail)

Common Habitat

Central forest-grasslands transition
Central U.S. hardwood forests
Chickasaw National Recreation Area
East Central Texas forests
Flint Hills tall grasslands
Southern Great Lakes forests
Upper Midwest forest-savanna transition
Upper Miss. River Nat'l Wildlife Refuge
Western Gulf Coastal grasslands

Attributes / relations provided by
♦ 1Spermophilus tridecemlineatus, Donald P. Streubel and James P. Fitzgerald, MAMMALIAN SPECIES No. 103, pp. 1-5 (1978)
♦ 2Diet of the Timber Rattlesnake, Crotalus horridus, Rulon W. Clark, Journal of Herpetology, Vol. 36, No. 3, pp. 494-499, 2002
♦ 3Resources of a Snake Community in Prairie-Woodland Habitat of Northeastern Kansas, Henry S. Fitch, U.S Fish and Wildlife Service, Wildlife Research Report 13: 83-98 (1982)