Koford 1955 Cynomys ludovicianus April 1, 1955 Nr. Ft. Collins, Colo. seeds & ate out areas of green wheat. Last year, first time this area planted, crop poor because "burned up," said Stroh. I saw 20± c.b. on area of about 5 acres near canal. Little or no Buchloe" here, but very closely grazed bunch grass. I saw some out in ploughed grounds, & some burnous thin, but some food there too as ground not recently ploughed. Well farms cotton & mounds. Several cotton had several entrances in side of pooled mud crater top. Saw two one at 100' range - taller than Spring Canyon Dam bunch, probably shot at much less. Much digging to 6" deep in bottom. Done only provenient bunch Chrysothamnus. We set 7 steel traps, buried, no mouse. Less greening here than Spr. Canyon Dam - a good contrast in some climate & soil (?). Soil loams easily dug with hands. April 2, 1955 Nw Weld Co., Colo. Arrived Dec. 22y CPER, about 11:30 a.m. Warm & partly overcast. Saw from W. end about 20 ant. Took up all live traps. Walked at laying out colony into 2 chain square plots. Some fresh eating of Opuntia green leaves. Founds digging of holes to 5" deep, about 14 chains W of E fence on slope & near stream bottom, when standing water & mud. One fob (Cagwellia?) showing near N. fence. A few scitylidan near water. Generally no greening could be found. Wetter sites seem to have Buchloe" stolus mainly. At bottom of 4 holes dug & investigated, 1/4" drain. Shaved off white root with pale brown covering (saved for ident.). Found 3/4" long white grub in soil next to 1 digging (not eaten?). Wind about 30 mph from E. at 3 p.m. & dust blowing. April 11, 1955 at CPER, Kipple told me that there had been a dog town in Dec. 15 E (some 15 W) that was poisoned about