Koford Cynomy s ludovicianus August 15, 1955 NE Larimer Co. Colo. Sha 3, Mts 10, Sphodr ( ? ) 2, Eucrota 1, Aristida 4, Chenop. 1, Bda 1). This may be oldest part colony, Naire of trachea presented counts. Willtops where no C.l. burrows about 50% cover, 95% Bgys. August 16, 1955 CPER, Weld Co., Colo. Made overlay map of Sec. 22 colony showing locations of at least 54 Cyn. lud., 6 Spestyto, 2 Sylviolaquar sec. (screen), not in bottom. Set 5 steel traps 9 a.m.; no catch by 3:30 p.m. August 17, 1955 Set traps set at mouths 5 C.l. burrows; took 2 Sylviolaquar & one Spestyto (none seen previously near). Best hopes. Difficult to tell Sylviolaquar from C.l. - Bgys. Scales gently not cut adjacent by Sylvi.; dropping differs but not always present, Re- counted dogs in some clearer areas (result on overlay map). //I saw a marsh hawk flying low over E. part colony, over Bottom, about every 100 yds. landed in grass. No evidence hunting of C.l. One C.l. ran to burrow, but no warning; hawks not in the hawk landed 50 yds. distant; another remained sitting on mound when hawk 50 yds. distant. // About 40 Koford cattle grazing here today, mostly in Bgys. bottom. // One C.l. passed through much Salsola apparently looking for something else. // Some scales of Sylviolaquar seemed to be falcis only - perhaps Salsola & Chenopodium. // A psyllid (sp?) fly commonly seen perched in mouths C.l. burrows (Stenopsoga, (Dreviuscula?)). These are flying-insert-eating flies (T. Hotchler, Entomol. Dept., says). August 18, 1955. Jim Lawrence, local rancher, says more Salsola this year than since drought of 1930's. B.C. Klipple says most since 1940. Lawrence says this is good feed, especially in spring. // Klipple considers anything over 50% utilization as heavy.