Attributes / relations provided by
♦ 1Geomys bursarius (Rodentia: Geomyidae), MATTHEW B. CONNIOR, MAMMALIAN SPECIES 43(879):104–117 (2011)
♦ 2Sylvilagus nuttallii, Joseph A. Chapman, MAMMALIAN SPECIES No. 56, pp. 1-3 (1975)
♦ 3Comparative Diets of Burrowing Owls in Oregon and Washington, Gregory A. Green, Richard E. Fitzner, Robert G. Anthony and Lee E. Rogers, Northwest Science, Vol. 67, No. 2, 1993, pp. 88-93