1960 Feb.19 50 large Sherman baited with oatmeal in the pasture at Orinda, more along Fitzgerald fence or southern half of upper fence. Good cover, some mustard blooming, some Microtus running and cuttings. 3 P.M. Feb.20 at 8 a.m. traps held 2 Minks, 4 Rattles, and 12 Mice. Many others had been visited by Mice (and Rattles?). Feb.23 Put 35 small Sherman (oatmeal) in pasture at 4 p.m. along NW fence and parallel to it but 10 yds south. Feb.24 at 8 a.m. had 1 Microtus, 4 Rattles, and 19 Mice at 5 p.m. same live, 1 Microtus, 3 Rattles, and 19 mice left traps some place. Feb.25 at 8 a.m. had 11 Rattles, 1 Sorex and 20? Mice at 4 p.m. had 2 Rattles and 8 Mice. Picked up Sherman and laid out (4 p.m.) a Calburn line from the Howard's chapel to the Fitzgeralds drive near Strong house. 60 Mouse specimens in sets of 3 at 20-yard intervals, peanut butter bait. Feb.26 Run "Calburn" at noon: 1 Mink +2 released, 6 Rattles, and 9 Mice. No Mice at the SW end of the line, most near the NW fence of the pasture, and not many near the Fitzgeralds! Cool, scattered cloudiness. Distribution of total by stations: 4 7 8 9 10 11 12 14 17 1R 2R 1R 3Mice 2M 1Mice 1 Mink 1 Mouse 1Mice 1Mice 1Mouse 1d