Table V. - Aerial Production Data, 1952 - 1953 
Stratum A Stratum B Stratum C Province 
1952 1953 1952 1953 1952 1953 1952 1953 
Survey Area 
Square Miles 22,088 22,088 26,100 26,100 16,112 16,112 64, 300 64, 300 
Sample Area 
Square Miles 240.7 244,85 174.3 177.575 82.57 78, 85 497.57 501.275 
Total Broods Seen 1,231 763 445 514 331 100 2,007 Ly3aTi 
Total Broods Indicated 1,231 1,095 445 588 331 226 2,007 1,909 
Broods Per Square Mile 
Indicated 5, 11 4,47 Zw FO 3.30 4,00 2.85 4,03 3.88 
Estimated Number of 
Broods Indicated 112, 870 98,733 66,555 86,130 64,448 45,019 243,873 230, 782 
Average Brood Size 6.81 5.47 6.81 5.71 6.81 4.80 6.81 5.5 
Estimated Number of 
Ducklings 768,645 540,070 453,240 491,812 438,891 220,411 1, 660, 776 1,252,293 
a ee A rf —  —eee 
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