Roford Cynomys ludovicianus May 13, 1955 CPER, Weld G., Colo. But scatted area bleak & boggy. Scratchings around crater as if to build up. Soil very dry. No water in colony, About 10 yds. from this crater were 2 new burrows 8" + 14" deep, 4' apart. One under old Chrysothamnus bush; one in Muhlenbergia patch, 20 yds. from first site, another new burrow in Muhly, next to old Chrysothamnus stub + Opuntia. At least 20 fork appearing wounds, possibly new as newly opened, with fresh soil in wounds. Some near-white with holes 1/4" to 3/4" deep. Most of these on slopes of about 5%. One under Opuntia clumps. 3/4 Up on arrival today, at least 8 seen on flat area of rotten in center of colony where much Buckler & some greaney. In general C.L. here very shy. Only 2 allowed approach to within 80 yds. (shot). Fair amount of Sphaeralcea about 2" high. Others have found this much eaten by C.L. Vasilin, grass about 4" high scattered widely at some sites; shallow roots. An Astragalus in flower (white), & a 4" high forb in white flowers. (Sample saved). Near dry pond in bottom open Salicola starting, Live 4" high, & Agropyron (?) 6" high. But in stake & marked them. No fresh carnivore droppings found, or badger digging. No hawks or eagles seen. Set 13 live traps baited with whole barley rolled oats, & carrot. May 14, 1955. Arrived Sec. 22 colony 7:50 a.m., 4 watched until about 4:30. None in traps or apparently interested in them. In a 15,6 A part of colony, I plotted approx. position of prairie dogs seen 25 in that area. At least 8 more known in colony. Nest stubs of censured area. Two in quadrant A'0 at W. end colony. East of E. fence saw 2 about 20 yds. S. of 185, marks, & two shot