Davis 42 146 I m. W. Hyamson, 1200 ft., Trinity Co., Calif. June 5, 1946 Spotted towhees were abundant in the undercover under the oaks on the camp side of the field. One (1771) responded to my screechowl calls and was collected. None were seen or heard on the river side. Yellow warblers were common on both sides, + were seen and heard in oaks + willows. Long-tailed chats were very common, but more numerous on the river side, where they occupied the grape [illegible] and willow tangles. Several Cali-formia Quail were flushed. They were found only in the grape tangles on the river side. One Bewick Wren was seen in a grape tangle. Mourning Doves were flushed twice from the ground in the dry west end of the field, about midway between the long sides. One raven flew over in the afternoon while I was setting traps along the irrigation ditches. 40 traps were set. A few Microtus runs were noted. June 6, 1946 Traps yielded 5 Microtus californicus, 4 of which were saved, and 1 Peromyscus truei, also saved. After running my trap line, I hunted along the river side of the field. There are several