"Behle 1933 Mad River Fork, 2700 ft. above Ruth, Trinity Co., Cal. May 24 - Ascent to the top of Horse Ridge. We followed the Forestry Service Trail up the ridge setting mouse, rat, gopher and steel traps at likely places all along to about 3500 ft. Gopher and molemounds were observed all the way up but the duggings were not fresh. Along the first two miles there were per many Audubon warblers Black-throated Gray Warblers. One Western Flycatcher was taken by Glinore at about 3000 ft. At one location in a Black Oak, yellow pine and Douglas fir association 4 Downy Woodpeckers were seen close together working their separate courses thru the trees. One S. Sparrow Hawk was seen in the distance and a Blue-fronted Jay heard calling from the bottom of the canyon. Junco's were common from the start of the trip. One Western Tanager was seen at about 3500 ft. At the branching of the trail we continued to follow the ridge