Koford 300 Cynomys ludovicianus October 12,1955 Nr.Dover, Weld C., Gla. obs. tell. No present C.l. burrows in field tho in adjacent un- ploughed ground (probably somewhat scouted by grain number). When most dogs (e.g. 2/3 of composition) Shrub not recently cut by C.l. Formerly cut atropely, even 1' above ground. I've got 2sha concentratively thin for 10yds. around mounds, so 2sha show up more thin. Apparently mice have many years. A few mice stop low broad mds. 10yds. across + 2' thick, as if C.l. had built up this mound over long period. Atropely, lodged low or some mds. Woody Aster (commutatites?) only 1-2" high but spreading on one mound. Many ant mds. in area. Ant cleanings usually sur- rounded with tall Sha. Opuntia common. Much dead Pega near mds, perhaps partly result C.l. activity (dead stubs). No graying here this year (no tracks or droppings). No badger digging. Droppings of apparent dogs on some mds. Most shrub only 10" tall. On blend near bottom, trails of bare ground then Kochia 10" tall, commutating burrows. Cercisium 2' tall not cut. No apparent con- centration of dogs or burrows near water. Digging or for food or on atropely, to 6" deep. new, the same at bare catter (eat roots?).) New indicator leaf of Peda & Pega are common foods now. No new burrows noted. See one Marsh Hawk over dog area. Kochia mainly on flat terraces, where perhaps damper, saltier. Some burrows partly roofed at entrance by Atropely. Burrows apparently all within 200yds. of lowest bottom (not streamlined). Sloper to 10% occupied. Popul- ation thin, possibly reduced or eliminated some areas by men. At N. end especially many burrows apparently unoccupied for a few hundred years. Occupied areas in field in a adjacent tracts of more conspicuous grass. I think this would be much less Sha