Cogswell 1950 Selasphorus rufus 2 Aug. 3 near Sugar Bowl Lodge, 7000 ft., 1.2 mi. SSW Donner Pass, Placer Co., Calif. - Still numerous. Aug. 16 I had campers observing again, Mr. Wely & Mr. Guest turning in one of the best reports yet - as one would expect from their serious attitude & at least partly scientif[ic] background. Both are high school teachers. [See sheets attached to this page] Their original The male they observed was the latest date for an adult recorded in the region this summer. I saw none later than Aug. 2. early Augusts Donner Pass & Ice Lakes region, 6700 - 7000+ ft. Placer Co., Calif. - ?? & imm. ?? still common, beginning to feed on scarlet Gilia which is in increasing bloom & (on "Signal Hill") on thistles. Aug. 24 "Signal Hill" 7100 ft., 3/4 mi. W Donner Pass, Placer Co, Calif. - About 15 seen in same area as mentioned on July 25 & Aug. 2. They are now feeding almost exclusively on thistles, altho those near the lodge (where there are no thistles) are growing scarcer with the waning of columbine & scarlet Gilia. Aug. 26 near Sugar Bowl Lodge [see above] - Still a few present, but numbers are decidedly down over 2 weeks ago (or even 1 week ago).