J. Davis. 1940. July 31. 3 1/2 mi.e. and 5 mi.n. Yaoclt, 500', Clark Co., Wash. large colony of mountain beaver. It extends on both sides of the road for about 400 yds. at least. There are literally hundreds of openings between the road and fences set back from the road about 40', and in most places, the system of tunnels extended well beyond the fences. In some places, especially about stumps, the holes are clustered, and radiate in all directions. Many of the burrows contained cut ferns, some green, some dry. Mr. Sanders, farmer, told us that they gathered green material, left it in the burrow entrance until dry, & then stored it in large granites' underground. He said that he had uncovered such a "store" about a bushel "in quantity," and that he had also uncovered a very large deposit of excreta, which suggested to him that these animals defecated in a special place. He added that he had seen them often, even walking right up the middle of the road. Seemed to know what he was talking about, as other of his information jibed with the facts. Three beaver were caught shortly after the trap lines (2 of 17 traps) were set. Birds seen around camp: - winter wren, Steller jay, red-shafted flicker, band-tailed pigeon, western robin, russet-backed thrush, red-breasted nuthatch, Trail flycatcher, spotted towhee, willow gold-finch, hairy woodpecker, red-tailed hawk. Aug. 1. 8 a.m. ran steel & mouse trap lines at locality 1 1/2 mi.w. Yaoclt, 800'. 7 rat. Aplobatia in steel traps, and 1 Zapus and 1 Heromyscus in mouse traps. Skinned Aplobatia until 4 p.m., returned to traps, and set some more. At about