Table IV. - Summary of Active Nests Concluded on the Success Study Area - 1955, 
No. of Active Nests Hatched Destroyed by Predation Destroyed 
Species Nests Concluded No. %o Skunk Crow Unknown by Agri. Abandoned Misc. 
Mallard 80 39 48.8 25 10 l 1 3 l 
Pintail ‘ 50 25 50.0 15 7 3 - a “ 
Canvasback 11 4 36.3 l 3 3 = = a 
B-w. Teal 4 i 25.0 - 3 - - - a 
Redhead 3 l 33.3 - 2 - " = : 
Gadwall 2 l 50.0 1 - = = a 
Shoveler 1 - 00.0 - - 1 - es és 
Balidpate 1 1 100.0 - - - = “ i 
Lesser Scaup l - 00.0 - 1 - - - - 
Total 153 72 47.4 42 26 8 1 3 1 
Table V£. - Broods Censused on the Success Study Area, 1955. 
June 4-6 July 9-14 Aug. 6-10 Uncorrected Corrected Percent 
Species ‘Brds. Brdy h. Total Brds. Brdy h. Total Brds. Brdy h. Total Total Total Comp. 
Pintail 32 - 32 23 20 43 3 9 12 87 86 32.3 
Mallard 14 - 14 19 15 34 9 12 21 69 69 25.9 
B-w. Teal - - - 13 14 27 8 12 20 47 49 18.4 
Shoveler - - - 8 13 21 7 2 9 30 31 11.7 
Baldpate - - - 3 i 4 2 2 4 8 9 3.4 
Lesser Scaup - | - - 1 - 1 4 - 4 5 8 3.0 
Gadwall - - - ~ - - 4 1 5 5 5 1.9 
Canvasback - - - - 2 2 2 l 3 5 5 1.9 
Ruddy duck - - - - - ‘ 2 - 2 2 2 0.7 
Redhead - - - 1 - 1 - - - 1 l 0.4 
G-w. Teal - - - - - - - 1 1 1 0.4 

Total 46 - 46 68 65 133 41 40 81 260 266 100.0 
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