121 
Table: VII. - Duck Index for Entire Area Surveyed, May Survey. 
Index 

Stratum me pe a ae Percent Change 
© Ontario 711, 525 : | 436,435 ~ $8.7 
C-Menitoba “ | 344,913 | 206, 270 - 40.2 
D Manitoba 100, 588 74,050 ~ 26.5 
C Saskatchewan 413,470 . 324, 788 - 21.4 
EeSeckeatchewan 63,428 65,944 + 3.9 
Total 1, 633, 924 1, 107, 487 an/§2, 2 
Table VIII. - Ducks and Brood Index, July Survey. 
oe Ducks Broods Total 
Ducks Broods Sample per per Stratum Index 
Stratum © Observed Observed Sq. Mi. Sq. Mi. Sq. Mi. Area Duck Brood 
Manitoba C 240 12 369.0 .65 .032 67,362 43,785 2,156 
Manitoba D 1317 30 122.3 10.76 . 240 3,960 161, 069 950 
Manitoba E 420 18 296.0 1.42 .061 105,000 149, 100 6,405 
Saskatchewan C 617 22 322.0 1.91 .068 110, 850 211, 724 7,538 
Saskatchewan E 293 15 196.0 1.44  .076 25,170 36,245 1,893 
Total 2887 97 1305.3 2,21 .074 312, 342 601, 923 18, 942 
