Cogswell 1950 Anas cyanoptera June 25 Sierra Valley, 4880-4950 ft., Sierra Co., Calif. - about 8-10 flushed in groups of 2 & 3 as we walked across wet pastureland. June 27 Little Washoe Lake, 5020 ft., Washoe Co., Nev. - about 30 seen, 88 & 94 flocking together, in escape flight at least. The most numerous of the dabblers here today. July 12 About 10 in one small flock of ducks which stayed closer on S shore while we were on N shore. There may have been many more present among many ducks which flew away. July 26 about 40 seen in marshy S end of lake, at least 2 & 4 putting on extended display displays when I walked among the many young ducks [some mallards, some teal]. Aug. 6 North Washoe L., 5010 ft., Washoe Co., Nev. - Group of 3 (1 recognizable as male, all but not in full, bright plumage) flying over drying marshes just N of the lake. Aug. 9 Little Washoe L., 5020 ft., Washoe Co., Nev. - about 70 present now, everywhere on the lake except the S. arm which is practically dry now. Aug. 23 200 + present now, altho the lake is still smaller a completely weed-filled (Potamogeton, Polygonum amphibium, etc.). The increase in nos. must be due partly to influx.