Koford 302 Cynomys ludovicianus October 13, 1955 Weld Co., Colo. green. One trapped Oct. 7 near 20W10S had Beta stolon in stomach. No evidence that Muhlenbergia sativa, at Sweetwater edge, our burner oppositely badgered this summer. Large Beta anything, much Begr, & little Beta, at edge of invaded area (each Beta inhibited spread?). // At Acon ranch near Rockport, a thin but extensive cover of Beta on ground. I had thought it would have been much more barren. Much castor bean on adjoining rancher. Ours has thin Beta in spite of heavy long use by buffalos & by C.L. "not decided at this season. Obvious eating of Beta same area. Begr present but scarce. // At Dec. 13, 8 mi. N. Waverly, took up 3 traps set there. No sign of a C.L. A Sylviolagus foot in one trap. Trapped at months burrows. // Dec. 10 Brown considered "pon" condition & going down. Much muckly & widespread Eremia, including young plants. Dawa Lepus townsendi same burrow as yesterday. // Ft. Collins, Colo. Talked with Charles Terwilliger of range dept. about nutritive value range plants. He said stage of growth + part of plant eaten of greater importance than species of plant, in protein & phosphate content. Cattle prefer fertilized plants - not know why. Strips fertilized; cattle prefer there. Also seek grass where dung fell last year (but avoid when fresh dung). Nutritive value of parts plants unknown in general. Nodes of stolon probably highly nutritious, & buds & stolon of Beta more nutritious than leaves. Don Henry has done work on this. Elbert Reid agrees that little known about plant nutrient quality, especially little in forbs.