Attributes / relations provided by
♦ ¹Sciurus griseus, Leslie N. Carraway and B. J. Verts, MAMMALIAN SPECIES No. 474, pp. 1-7 (1994)
♦ ²Evaluating Diet Composition of Pronghorn in Wind Cave National Park, South Dakota, CHRISTOPHER N. JACQUES, JARET D. SIEVERS, JONATHAN A. JENKS, CHAD L. SEXTON, and DANIEL E. RODDY, The Prairie Naturalist 38(4): December 2006, pp. 239-250