
99 
K24 Blue-winged Teal 
NN Gadwall 
Mallard 
Number of 
fe] Pintail 
indicated 
pairs 
F 
NN) 
Wife 
CX CLK 
erere%e% 
easeres 
SASS 
wi keh 
es Cx ‘ia x> NS ATA A A A A 
RE 
UA 
YUU; 
KKK KKK OSB BSBA BBAN 
bisescesey 
SSM 
THESE 
ANI 
OOOO OLA 
GEOL SCCCCCELLELELE 
Scesteueee] 
MUAY 
WU: 
MOORE. 
parsers 
OOM 
ee 
a 
AMIN 
300 
200 
100 
April 10-25 
=i 13-22 May 23= June seme June 13- July 11l- 
June 3 July 9 Auge 9 
May ao 
ae ‘B5e 
May 4 
Figure 11.--BREEDING POPULATIONS OF FOUR SPECIES OF DUCKS, WAUBAY STUDY AREA, BY PERIODS, 1951 
