Table IV, - Species Composition of the May, 1955 Waterfowl Population 
of Southern Manitoba. 

% Change 
Species Stratum A Stratum B StrataA & B %Composition 1954-1955 
Pintail 48,900 80, 600 129, 500 16.8 +108 
’ Mallard — 137, 300 218, 400 355, 700 46.2 + 41 
Baldpate 11,200 16,500 27, 700 4.6 + 62 
Shoveler 12, 800 12, 300 25,100 3.3 + 34 
Gadwall 4,900 3, 300 8, 200 1.1 - 12 
B-w. Teal 47,500 40, 300 87, 800 11.4 + 32 
G-w. Teal 1,400 2,500 3,900 .6 - 51 
Scaup 30, 200 23, 800 54,000 7.0 + 34 
Canvasback 22,500 5,900 28, 400 3.7 - 6 
Redhead 14,600 10, 600 25, 200 3.3 + 43 
Ringneck 1,500 - , 1,500 ob - 63 
Ruddy 10, 600 1, 700 12, 300 1.6 +173 
Goldeneye 700 3, 300 4,000 5 - 38 
Bufflehead 700 5,000 5,700 a - 28 
Scoter 200 - 200 Tr - 33 
Merganser 100 - 100 au - 67 
Sr a a a 
Total 345, 100 424, 200 769, 300 99.9 + 41 
Coot 16, 200 _ 12, 300 28,500 +113 
Flocked Scaup 57,300 16,500 73, 800 + 41 

Table V.- May Waterfowl Population Indices - Southern Manitoba Aerial Survey. 




Stratum A Stratum B 
Year 10, 368 Sq. Mi. ’ 28,600 Sq. Mi. Strata A and B 
1951 472, 800 165, 900%* 638, 700%% 
1952 343, 200 177, 300 520,500 
1953 209,400 151, 600 361,000 
1954* 317, 100 228, 300 545,400 
1955* 345, 100 424,200 769, 300 
% Change, 1954-1955 +12% +86% 441% 
* The 1954 and 1955 data do not include scaup seen in flocks and 
considered to be non-breeders. These amounted to 
52,400 in 1954 and 73,800 in 1955. (Nearly 10 percent 
of the total duck population. } 
81 
