J.G. Hall 1953 116 July 15 Sagehen Creek, 3 mi. NW Hobart Mills, Nevada Co., California Spring camp 10:30 AM. Ososhawk flying high over camp in a downstream direction & calling in flight. Saw Mt. quail a little later flying up hillside between the two tents. Roadside colony 11 AM, kingfisher being chased by some smaller bird. Lower colony 12 noon. Heard kingfisher but saw none. Surveyed all afternoon with Bill. Weather clear + hot, turning cloudy & sprinkling a little. Aug 6:30 when July 17 we left. Upper colony 9:30-11 AM with Leopold. Suggested a 3% sample for line transect sampling (of aspen) but 5% might be better to give a margin of safety. Also suggested a line transect or two for studying willow use. Count + measure each willow stem + check annually the change in stem measurement. Use metal stakes for marking photo pts + transect lines. Upper trestle 11:30. ♀ Williamson's sapsucker feeding a young bird perched in a young t'pole 75 yds from the dead hone tree. A swallow's head twice seen peering out from its nest hole, before one - a brownish head flew out to be