Koford 297 Cynomys lodovicianus October 7, 1955 (CPER, NW 4/4 d G, G10. think hawk got it rather than coyote. About 1 mile E. of Colony Draw or mine. Aguila at roadside, a Falco mexicanus flying. #65 apparently jowl. Taken at 20W 10S, part of SW invasion area. But one taken at 24W 2N, a nearly isolated burrow at optimum peri- iphery, proved to be very large or (#168). (At SE option, cabin, exceptionally large or also taken. Provenance adults?). //Frogs last night, probably first frost of fall. This may bring Cottles into den in C.L. town, the ones found here today. No Spor- tylo seen. Named leader still command leader. 167 taken at peripheral afternoon near 30W 2N. Nr. Ft. Collins, Colo. October 10, 1955. Visited Don Mc Millen, County agent here since about 1945. In spring of 1950 a group of ranchers in foothill area requested program to eliminate prairie dogs. F&W L. Service assigned a supervisor, 42 men employed to do work. SCS kept brooder. Rancher paid about 9¢/A for approx. 500 A per round 1953. After 1953 few dogs. No program this year. While thus I heard of complaint of rancher near Boyd Laker; prairie dogs taking winter wheat (planted dept.). Mc M. said remain area source of trouble as not on private lands as C.L. not controlled. //Present control man is Bern B. Terrell, Box 182, Ft. Collins (a college student). //In mid afternoon I drove N. to 7½ mi. N. ¾ mi. E. of Wovely (Dec. 13) & saw 1 C.L. in area where took 2, appar- ently last only over there, last spring. New are probably as under this year. Set traps for it. Three burrows possibly used, in area 75 yds. diam. //In Dec. 24, town,