78 
Table II. +; Total Duck Index by Species in Manitoba, 1953 - Based on Aerial Data 

Species Stratum A Stratum B Stratum C Stratum D Total 
Mallard 89, 088 65,594 145, 898 29,185 329, 767 
Gadwall 5,925 2,045 ~ 542, 8,512 
Baldpate 11, 004 2,045 7, 588 4,232 24, 869 
Pintail 19, 256 27, 842 2,414 8,572 58, 084 
G-w. Teal - - 1, 380 1,953 3, 333 
B-w. Teal 25, 393 13, 842 - 3,906 43,141 
Shoveler 3, 386 - - 4,557 - 7,943 
Merganser - - 76,571 - 76,571 
Redhead 6,772 5, 663 - 4,231 16, 666 
Ringneck - - 18,281 542 18, 823 
Canvasback 9,734 2,045 ~ 9,874 21,653 
Lesser Scaup 41,052 38, 224 85, 883 38,953 204,112 
Goldeneye - - 4,484 108 4,592 
Ruddy duck - - - 1,410 1,410 
Bufflehead - - 2,414 434 2, 848 
Total 211,610 157, 300 344, 913 108, 501. 822, 324 
Table III. - Species Composition in Manitoba Expressed in Percent - Aerial Data . 
Stratum A Stratum B Stratum C Stratum D 
Species 1952 1953 1952 1953 1952 1953 1952 1953 
Mallard 40.4 42.1 24.2 41.7 19.4 42.3 26.2 26.9 
Gadwall 2.8 2.8 ‘ | a - - ee 
Baldpate 4.4 5.2 0 1.3 ~ 2.2 4.8 3.9 : 
Pintail 8.9 9.1 6 17.7 - 7 7.2 7.9 
G-w. Teal 1.4 - .0 - - a4 .6 1.8 
B-w. Teal 12.4 12.0 9 8.8 - - 3.1 3.6 
Shoveler 3.9 1.6 9 - - - 2.1 4.2 
Merganser - - 4 - 39.8 22.2 4.5 - 
Redhead 3.3 3.2 7 3.6 - - 4.1 an 
Ringneck 1.0 - : - . 12.2 5.3 1.9 es a 
Canvasback 8.4 4.6 ae 1.3 - - 13.6 9.1 
Lesser scaup 11.2 19,4 2 24.3 -O 24.9 27.0 5.9° 
Goldeneye 5 - 6 - - 1,3 2.3 ok 
Ruddy duck 7 - 6 - - - 2 1.3 
Bufflehead 25 - tr. - - 7 9 4 
Scoter et - - - - 4,5 - 
Misc. - - - 27.6 - - - 
ep ree PS A a 
