J.G. Hall 1952 June 27 Sagsen Creek, 3 mi NW Hobart Mills, Nevada Co, Calif. to tell pile-up jams from dams. Didn't see much nearly cuttings or a lodge; it may be a subsidiary dam of the rockslide colony although it is several hundred yards downstream from it. Song sparrow singing from dead snag overlooking willows. Continued downstream to where creek passes under route 89. On way down saw 2 pileolated warblers in willows below the intake, a white-breasted nut-hatch entering a cavity in top of a 40' dead snag on which red-naped sap-suckers were also seen. Yellow warbler and 7 Western Tanager seen in small lodgepoles. Warbling vireo sing- ing in lone l'pole standing in sea of willows. Only beaver sign was a couple of fresh 1 & 2" aspen stumps about 1/2 way between the highway bridge & the lumber road bridge. Reached 89 by 3 P.M. Weather cool & cloudy all day.