Sept., 1914 
SURVEY OP BREEDING GROUNDS OF 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 ivas 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 eggs of Mallard {Anas platyrhynchos) in sage-brush; 
White Lake, near Merrill, Oregon; June 6, 1914. 
ent occasions. Males were more often seen than females. As many as ten 
males were counted in one flock. Two males noted were already assuming the 
eclipse plumage. The green feathers of the head had been replaced by brown 
feathers. 
Marila americana. Redhead. The east side of Lower Klamath Lake 
abounds in Redheads. More were seen in this locality than anywhere else on 
the trip. In one flock alone we counted sixteen individuals. In the vicinity 
of White Lake, Redheads were more common than Mallards. On the west side 
of the lake the reverse was true. A female closely followed by a brood of 
small downy young, seen swimming on White Lake June 5, appeared to be of 
this species. 
Querquedula cyanoptera. Cinnamon Teal. A brood of five or six small 
downy young was seen on a small pond on Willow Creek on June 6. The brood 
