Koford 1955 Cynomy s ludovicianus April 26, 1955 Nr. Ft. Collins, Colo. now about 4" tall. Saw C.L. apparently went right down furrow, digging shallow pits. I saw 10 in this field at one - 5 yds in an area of 1 A. At least 3 in another area 300 yds. W. of first. This field (N. facing slope) along base hill, gentle slope, 4 50 to 100 yds. wide. Well developed burrows of C.L. out in field. 3 logs 10 yds. down slope into field from upper edge (incult. above & old mesin rodier & steeper - this incult. area with burrows - some insects of field not at top of slope). I saw one gathering dry grass about 10' along edge of ploughed field. At then ran 50 yds. down slope into field & took grass into burrow. Out 1 min. later & went for more gross, same site. 3½ min. after leaving burrow, back again 4 in. Out 1½ min. later & again ran wellled to uncultivated ground. When I first arrived this morning I heard many land calls - somewhat like a group of quire in sound - & I saw a Butis loculi flying low over colony. Perhaps calling in response to hawks. I shot 4 75 about 100° E. of road in W. half sec. 3. Belly nearly all molted. A yellow-flamed Coguillia (?) common blue, 4 saw Lemo- crenium (sand lily) & 4" tall spongy grass. 1 a fur new burrow 4" deep near bottom, on 10% slope. Two burrows 4' apart seemed to have been recently dug out by lodge. Mound demolished, cistus broken up, 4 large rocks on surface. Scratching on surface showed possible attempt to rebuild mound. April 28, 1955 Nr. Ft. Collins, Colo. Clear but windy (30 mph). At 7:15 a.m. arrived Fossil Creek. Shot (See 3) (See 4) one to E. of road (no planted fields) & 2 to W. All these hiding in burrows only head to showing, both two chirping at me. At 7:45 a.m., 13 seen on S. slope at N. side colony in the planted field (after planting), 4 2