Hatfield-1934 Colo. R, 1/2 mi. N Calif.- Nev. Monument, 500 ft., Clark Co, Nev 330 February 2, 1934 It seems peculiar that Saguodon should be so localized here. Undoubtedly there are other colonies about, but so far we have discovered none. February 3, 1934 Spent morning putting up birds. At 2 P.M. went over trap-line, taking in traps. The catch consisted of 3 Peromyscus maniculatus, 1 Reithrodontomy, 1 marsh wren, and 2 Lincoln sparrows. Put up two P. maniculatus but the birds were spoiled. Tonight put out 10 rat traps in hopes of catching Neotoma albigula. February 4, 1934 Caught in traps - One Neotoma lepida " Peromyscus eremicus Put up the two mammals this morning. Sick most of the day. Late in afternoon, about 5:00 P.M., noted numbers of bats flying. The wind came up about 5:30, and within 10 minutes there were no bats to be seen. Set out no traps tonight, except one left at entrance of Neotoma burrow last night.