Koford Cynomys ludovicianus May 30, 1955 Nr. Ft. Collins, Glo. At 5 p.m. saw 3 Sylvilagus at mouths peripheral burrows (one obvious hole). // Spr. C. Dam. #18 + another 5 yds. N., probably connected; trap set next to #18 where 3 jays, seen yesterday; jays at other hole today. At Lunaw where 5 jays, all went down hole with small rein, 5 yds. from larger mound where they spent much time. // On horse pasture, Dec. 3, 6 mi. S. E. W., Ft. Collins, saw one litter of 3 or 4. An adult went down same Lunaw. // Dump colony. Saw Condon brother pollig dung. Salalola 2" high, green, in main green cover. Much Buckles brown & perhaps dead. // Thought: in small colony, predator such as fox, ferret or badger could reduce clean sweep, kill all. May 31, 1955 About 8:30 a.m. counted C.L. at Spring Lanya Dam colony. N. of fence saw 5, plus 1 jay, at #5 Lunaw. S. of fence saw 5 (2 at #15, 1 at #26, 2 near #12), plus the two litters. Total 10 + 3 litters (of 1, 5, 4). Calm, warm, partly overcast. // At Dump colony saw at least 5, in about same area as yesterday, but one 30 yds. W. of bottom near N.W. end colony. No jays, all (but 1) on 5% slope, 3±70. // At Dec. 3, 6 mi. S. Ft. C., shot #7125. Molt line just anterior to root tail. 15 ± fleas. It was in extra 5 yds. from which 4 jays, none played on mound. Later jays, seem to go down this route. About 200 yds. to W. a zone (5) slope, 30 yds. from milk bed, saw adult with little 2 jays. No other litters seen on 5. Slope. // On N. slope where dairy, at near old pond & downslope from an irrigation ditch (now full water, 3' wide), there were several litters. From W. to E. numbers jays: 9, 4+3 (10 yds. apart; some?)