Koford Cynomy s ludovicianus March 29, 1955 Nr. Ft. Collins, Colo. Retained 4 p.m. 4 saw 7 out; 1 m. #28, 2 m. #15, 1 m. #34 (no prey, activity noted there), 1 m. 17, 1 m. 16, 1 m. 10. Set traps at #15, 5 yds., 5 W of #15, 23, 26, 27, 28, 34; stilt traps, buried. Saw a hydriologue at mouth burrow 10' E. of #29 where C.L. troche after a recent snow storm. It stayed while I walked to pt. 20 yds. distant. Carlin in p.m. invited colony in Fossil Creek just E. of Toft St., 5 W 1/4 of Sec. 3, T 6 N, R 69 W. Saw 20+ in 40 A area. Apparently former large colony, there being some part after poisoning. Heavy utilization of posture - much bare ground. Most concentrated near small dammed pool, not bottom. Many troche in mud. Saw to 100 yds. from road. Apparently dogs widely scatted, not concentrated. About 1/2 mile to W., many burrows on hillside for [Dump Col.] They saw 2 near crater burrow in SE 1/4 of Sec 33, 1/2 mile E. of Per. Can. Dam Colony, where brook valley S with many old burrows (I speculated this area once long ago). Active burrow had 15+ soggings within 10 yds. Three first sired burrows from 1" to 4" deep, in bottom of several was exposed chewed end of 1/8" to 3/8" drain, white juicy root with tan outer root (sound for ident.). Cogwellia with 1" [illegible] in area, also green grass (steps?) occasional plant to 6" high; but none eaten found. Took 4+ photos (2 1/4") of diggings, 5+ burrows in 50 yd. drain. seemed to have been used recently. The 2 seen about 200 yds. W. of county dump, where many people shoot at junk targets. March 30, 1955 At 11 a.m. arrived at Spring Canyon Dam colony. I saw more out. Rabbit fur in spring traps 100 yds. W. of #26. I moved this trap (#34) to a site about 100 yds. W. of #15. Q 77 in trap 15, or 78 in trap 5 yds. S.W. of 15, Q 49 in T. 27. Killed them. No activity at burrow #16 so set trap 10 yds. WNW of it. No activity at #10 so set traps 15 yds. N of it.