Koford 1955 66 Cynomys ludovicianus March 8, 1955 Nr. Wellington, Colo irrigation ditch, probably there will be little or no expansion in area within preserve, but probably will be expansion to S (4 to E of 5 part) in non-barren pasture. If will not be noted at this end good for mapping to watch for change, dry pond [illegible] I was surprised to see many in open stand of Kochia. These stood up high when we gave alarm call. at least two large mounds in the Kochia, coming to height of tops plants. Population here seems to be high. Then I drove on to see, 2-2 in C.P.B.R., Nr. Nunn, Colo. There were many at there 10:30 a.m., when temp +15°C, 4 breeze about 15 m.p.h., = 37 at least.