Sept., 1914 SURVEY OF BREEDING GROUNDS O1 DUCKS 231

est duck nesting on Lower Klamath. One nest on White Lake was situated under a sage bush about twenty-five feet from a canal. It contained twelve eggs on June 6 (see fig. 69). One found in a marsh on Willow Creek, also on June 6, was placed in a bunch of cane grass on a sage-covered knoll. The nest was well lined with down in spite of the fact that it contained but four eggs. A fifth egg had been broken in the nest. The bird was evidently incubating, for she was flushed a number of times from the nest, and in one instance she had partially covered the eggs with down before leaving. Another nest found in this vicinity, June 7, was placed in an exposed position at the south side of a boat house, the nest rim on one side being in contact with the boards. It contained nine eggs and we were told that the nest had been there for about three weeks. Three broods of downy young were seen and one or two half- grown young were noted in the same general locality on two or three differ- Fig. 69. NEST AND EIS OF MALLARD (At8 platyrhynchos) IN SAOE-BRUSH; WHIIE LA,  MERRY, EN; JUNE 6, 1914. ent occions. Males were more often seen than females. As many as ten males were co.ted in one flock. Two males noted were already assing the eclipse plyage. The green feathers of the head had been replaced by brom feathers. Mfla amecana. Reread. The et side of Lower Klamath Lake abods in Redheads. More were seen in ts locality than anhere ehe on the trip. In one flock alone we coted sixteen individuals. In the vicinity of White Lake, Rereads were more common than Mallard. On the west side of the' lake the reverse was true. A fele closely followed by a brood of small downy yog, seen swimming on Wte Lake June 5, appeared to be of this species. querquedffia cyanotera. Ciamon Teal. A brood of five or six small downy young was seen on a small pond on Willow Creek on June 6. The brood