Roford Cynomys ludovicianus August 4/1955 Nr. Wellington, Colo., out C.L.? ), On main part colony, same areas stood Bida (killed by C.L. eating in winter?), only stol er of fatolas left. Atriplev shoots cut & many stems of Kochia, but plenty R. left (49% avg., a W. 1/4 colony), 3"-6" tall, coming grounds, Old barley field at N.S., side horse pasture now ploughed up. Much Salsola, Kochia, in horse pasture. C.L. somewhat hard to see because of weeds. // CPER, Weld Co., Colo. Arrived 9:45 a.m.; 9/10 cumulus; not hot. Inspected area E. of E. front line. Farthest S. burrow July 21 showed no current use; no more vicinity dug that area site, farthest S. sized being 40 yds. farther N. (2 more used 30 yds. N. of that). Mapped burrows E. of fence. Several new shallow diggings in quadrant A'0. One 4" deep at base Opuntia; another at base dead Chrysothamnus bush. Soil loose & sirty; another, 6" dep, Lithium tifte Bgvs Muhlenbergii. 50+97% bare ground this area, 1/4 burrow (for food ?) about 10' apart. No current activity 5E of angle iron stake No. 36 (see map), but burrow 80 yds. WNW this stake oppo- sitely used. Near 225, 0 W, found fresh intestine & carcass of C.L., specimen of large bird, & a fur hawk feather. 30' distant worskin, head, & half nest of fresh C.L. (today's kill probably). Later I saw a Falso medicinae burrow near the site & a Batis 1/4 mile dis- tant. C.L. body of a grown Q. // Chrysothamnus bush 10" tall 3' from). C.L. burrow had 15% to shoots cut off & left (in girl, Chryo. seems little cut). Much Salsola & seedsteller Bgvs cut through colony. // I shot Q.136 at C2 in MB'(see map) at 12:30 p.m. This water large, used early this year. No recent cattling found more than about 10 yds. E. of that crevas. Apparently Cleme not cut (has smell, taste ?) the isol- ated plants 2' tall present. Possibly Cirsium & Argenmores also not cut, Verbena brostrata rarely. On control plot when their 162 2/2