Koford 1955 55 Cynomys ludovicianus February 29 Nr. Ft. Collins Colo. probably contributed to nest materials. Snow melting fast as slips most burrows now bare soil. Place where this seems to come up this morning; it did not walk in snow. No tracks at any other burrows since the 3 when activity seen (we moved today, came out later, tracks in loops to 10' from hole). I checked traps & brushed snow off them. February 25. 1/10 overcast, calm, warm in sun. At 9:35 at Spring C. Dam along two out - in E. group 10 yds. N. of fence where none seen yesterday. 9:57, a third out; in far W. group, 10 yds. N. of fence, where none no activity found yesterday. Temp. -1½°C., shade, 2' high, 10 a.m. 10:02, a second out in E.W. group & a third in E. group, so 5 out. 10:10, one of W. gp. went in; a third one. One of E. gp. went in but came out again (4 total out, both gps.). The 3 in E. gp. are 60 yds. S. of where 3 yesterday (same?). More bare spots in snow than yesterday. Tapes most burrows free of snow & small bare patches, but about 90% ground covered with 1" wet snow. 10:25, only one out in each group (2 total). Much warmer than yesterday at same time yet little activity (1 more spot mound when 3 yesterday). +3°C.; light breeze. 10:40, 2 came out in W. group. One scratched ground saw'l xx with fore and hindfeet, then went in burrow & out 2 min. later. Feeding desultory & within about 5 yds. Burrows. One puts more again again to deep object, probably now dung. 11:00, a new one out in center of colony 100 yds. S. of fence (steps out that left last storm), where we came to looked out but did not leave outside. The one in E. gp. about 30 yds. upslope to E. of where initial activity. 4 total out (11:05). +3½°C., polar, warm in sunshine. 11:20, the same 4