Attributes / relations provided by
♦ 1FOOD HABITS AND NEST CHARACTERISTICS OF BREEDING RAPTORS IN SOUTHWESTERN WYOMING, Patricia A. MacLaren, Stanley H. Anderson, and Douglas E. Runde, Great Basin Naturalist Vol. 48, No. 4 pp. 548-553 (1988)
♦ 2Lepus townsendii, Burton K. Lim, MAMMALIAN SPECIES No. 288, pp. 1-6 (1987)
♦ 3Sciurus niger, John L. Koprowski, MAMMALIAN SPECIES No. 479, pp. 1-9 (1994)