Sept, 1914 
SURVEY OF BREEDING GROUNDS OF DUCKS 
225 
in a little open water near a dense growth of tules. Attempts to locate a nest 
of this species proved unavailing. 
Fulica americana. Coot. Next to Blaek-neeked Stilts, Coots were the 
most numerous nesting birds in the vicinity of Los Banos. A record was kept 
of the general location of each nest found, material used in construction, and 
the numbers of eggs. On our arrival May 11 many new nests were found near- 
ing completion. On our departure most of the nests contained eggs. We were 
therefore led to believe that the nesting season 
was fully inaugurated by the 
middle of May. Only five broods of young were 
noted during our stay at Los 
Banos, while more than fifty nests were found. 
RECORD OF COOT’S NESTS FOUND 
AT LOS 
BANOS 
Location 
Material 
Date 
Number of eggs 
1. In sedge ....... 
May 13 
6 
2 . “ " 
“ 14 
9 
3. “ “ 
ft ft 
9 
4. In tules 
ft ft 
3 
5. In dock weed... 
Sedges 
ft (( 
5 
6 . At edge of tules. 
Tules 
“ 16 
3 
7. On aquatic plant 
Sedges and 
aquatic plant 
ft ft 
5 
8 . In tules 
ft ft 
6 
9. In wire grass .... 
Sedges 
ff ff 
64-1 young 
10. On aquatic plant 
ft ff 
4 
11. In low tules 
Tules 
“ 18 
4 
12. In tules ........ 
ft ft 
9 
13. In sedge 
ff ff 
4 (2 pipped) 
14. “ “ 
“ 
ft ff 
8 
15. “ “ 
“ 
ff ff 
1 (pipped) 
16. “ “ 
ft ft 
14 -others hatched 
17. “ “ 
(t 
ft ft 
8 
18. “ “ 
“ 19 
10 
19. 
20 . 
21 . 
22 . 
23. 
24. 
25. 
26. 
27. 
28. 
29. 
30. 
31. 
32. 
33. 
34. 
35. 
36. 
37. 
In tules Sedges 
In sedge “ 
<( (( 
In tules Tules 
In sedge and weeds “ 
In tules “ 
In sedge Sedges 
20 
22 
23 
On aquatic plant “ 
In sedge . Aquatic plant 
“ “ Sedges 
Total 
Number of additional new but empty nests 
found 
Number of nests with all eggs hatched 
(2 pipped) 
+ 1 young 
.37 
.16 
. 2 
Grand total 
55 
