Roford Cynomy s ludovicianus May 4, 1955 Larimer Co., Colo. id part about 400 yds long, 100 to 150 broad. Now in my 4 traps, the one spring. I took there up & set 6 at burrows where one seen today (2 seen at mouth one crater), Saw one C. 13 alveolatus on a Cyanea mound at edge colony, || Then visited her 10 colony, 9 mi. N. Worely, F took up 14 traps. Then hike 7-99 (same trap as yesterday). Three other troper spring (set some or day before), I shot 7-98 + 9-97, approaching to about 70 yds. range, 4 missed 3 others at 70-100 yds. Some large mites had a surface several small burrows as of Dipodomy s ordii , Saw no Citellus or Spectyto in area. Saw a Sylvilagus in mouth an burrow -it went down it. Rabbit fun round edge. Apparently lodge-dug hole without C.L. Many mouse troks northes saw, burrows, at least 15 apparently lodge-dug burrows found in my route. Perhaps dug last fall. Many burrows had two webs across mouths. Several burn, in a next to cut into, angling under. One like this had active Pogonomys colony in mound. General cover of area Beckleria doctylodes (flat areas especially), Muhlenbergia (major some slopes), Bantilava gracilis, Stipular caererea (heavily browsed west sites 10 not over 3" high). Few ferals - yellow pony & Cogwellia present but rare. May 5, 1955. at colony near county dump, 6 traps held 7-100 + 4 Spectyto (set at burrow where -C.L. seen). 7-100 screened & scrouded especially much in traps. Taken at W. edge of N. and colony. Set trap 25 yds. N. + 25 yds. E. of burrow when 7-100 taken, Left 6 set in all. No troker where 7-96 was taken. || At CPER colony, many out. Several feeding on bottom in center colony. One high in slope at S. edge above peripheral burrow (near 12 W,