Lee Arnold 1937 Itinerary May 26 Warm Spring, 4000 ft., 9 mi E Arnold, Lassen Co., Calif. Last night I was assigned to set out a trap line around the cultivated alfalfa field to the south of Warm Spring proper. I set out 108 traps most of which were in the grassy plots along the fence of the farm. In all I caught 18 Peromyscus maniculatus and four Reithrodontomys. I saw no signs whatsoever of Microtus. I preserved all of the 'Reithras' and one of the Peromyscus. Accounts on the habitats of these will be found in the species account. Yesterday evening while setting out the traps I shot one small Sylvilagus near the south end of the alfalfa patch. This morning I shot an adult at the same locality. In the brush next to the field south of the alfalfa patch I found the remains of a Cackling Goose. I asked the attendant at the ranch if these occured here in the winter and he said that at times large flocks forage in the field. He claims to have fed them quite some corn last winter. At several times during the last few days I have seen a pair(?) of Mallard Ducks flying south of the alfalfa patch. At one time I saw three of these birds - 18 & 29. The male was chasing the ? much as might be expected of mated or mating birds. If I have time I am going to try to locate any possible nesting sites of these ducks. Brewer Blackbirds are very numerous around this field. While setting traps