Koford 47 Synomys ludovicianus February 13, 1955 N.Ft. Collins & Loveland, Colo. At 9:30 a.m. arrived at Spring Canyon Dam colony. Denny color, 4 warm for this season. I saw 3 out at 1 burrow (when no top) + 1 other out. I set two live traps near burrow when 3 seen, 4 departed. These 3 down when approached to 150 yds. Dinner to buy Jordan place where at 11 a.m. I saw 5 out of burrows. None in my 5 steel traps though. I set 4 live traps + walked off. Across a 200 yd. wide ploughed field to S. I saw 2 out + found then 5 burrows at edge gently sloping field. Apparently much room to expand to S. Ticks 100 yds. from edge ploughed field. Covers her coarse low creeping grass (= Distichlis stricta?) that grows on wet sites in this area, 6" + low space between plants. Tall coarse grasses closely cropped + stripes too, so heavy at Dighton (by horses & cattle) are, droppings. Mounds of non-rocky subsoil - apparently claylike or in small holes (foth hadodone 35mm. pie). There C.L. down when approached to 200 yds. All very wary. I stayed in area until 12:38 but more out by then (some on lawn undisturbed). Took up traps & returned to Spring Canyon lunch. Then at 1:30 p.m. Saw 11 out, but now near my steel or live traps. // The Loveland colony in area of Stripes (4-wings) about 3' high. Several bolder dry holes this area. Apparent C.L. burrow centered atop a 2' groove bump —:— about 8" high + 1/2 acre (why?). Another at base of fencepost, loosening part. All in a group To S. of a dry drainage ditch (artificial dug) & upslope 200 yds. from arroyo with water (see now). // On good day at Spring C. Dam, 20-25% population out 9:30 a.m. Then feeding walks slowly, raising heads for a look every