Cogswell 1950 Certhia familiaris 9. Aug. 1 (cont.) The nest tree is one of several water-killed ones among a pure lodgepole stand on a grassy knoll by the lake shore just E of mouth of Castle Creek. The bird(s) seem to forage entirely toward the landward side of the nest tree, which is about 3 trees in from the lake at present. Aug. 4 vicinity of Sugar Bowl Lodge [see p. 1] - songs still heard occasionally. Aug. 8 N. side L. Van Norden [see p. 8] - both ads. for their feeding young in the nest. Visits, about every 2 min. now. Aug. 9 Salena Cr. Camp, 6600 ft., Carson Range, Washoe Co., Nev. 1 foraging on trunks of Jeffrey pines & white firs. Aug. 13 N. side L. Van Norden [see p. 8] - pair of ads. feeding large young, which give hissing food calls, in the NEST described above. Aug. 15 This nest now empty, the young presumably having flown (since the nest was undisturbed). It has been 16 days since Hays first discovered it. Upon taking off the bark carefully, the nest was found to be nothing but lodgepole pine needles filling up a gradually tapering space between bark & trunk to within about 3 inches of the entrance hole. The width of the space occupied by the nest (distance of bark from trunk) seemed barely enough for 1 adult to sit on nest even with tail parallel to trunk. mid-Aug - near Sugar Bowl Lodge [see above] - still req. individuals + mixed in small bird aggrec.