Koford 48 Cynomys lodovicianus February 13, 1955 Nr. Ft. Collins, Colo. 10± sec. II At 3:45 p.m. at Spring C. Dam colony only one still out, the still day, calm, 4 sunny. More near traps, no sign of troche or eating grain bait. Three seen earlier today about 155 yds. S. of some where not before seen (or troche). Series Opuntias, Many troche near burrow I marked with stones where saw one on first visit here with Baldwin. Probably more out than any previous day in last month. Probably at least 20 percent in 200 X 300 yard area (=12A±). I set 4 new steel traps, buried, on mounds where saw C.L. /Arbeto lopper feeding on grounds 50 yds. from burrows, but food not found. February 19, 1955. Visited Spring Canyon Dam colony 11 a.m. I saw about 5 out, but none near traps. When live trap set none out, but 4 at a burrow 30 yards distant (probably same group). At noon about 10 out, walking slowly, tails usually up, feeding. Now came out of holes where steel tape buried, no troche there! I reset 1 trap & put out 2 new so now 10 set at 9 holes. Nearest approach allowed by C.L. was about 175 yds. They run to burrow, thin gradually sink in farther as man approaches. Some times remained crouched at mouth burrow, tail up, & freeze for several min. Feb. 15, 1955 Nr. The Forby Laramie Co., Colo. Drove to Pat Fence colony NW of The Fabs. Arrived 9:15 a.m. I saw several C.L. out. Half overcast & 20 mph. W. wind. I tried to shoot some. Missed many, apparently because of the wind. Then, bloody escaped down burrows. They seem to start for about 2 ft., then drop vertically,