109 
Table III. - Duck Species Index - Stratum C, Manitoba, 1954-1955. 


Species . Change Percent 
Composition Species Index 2-Year From From 
Species 1954 1955 1954 1955 Average 1954 Average 
Mallard 32.4 28.9 66, 832 53,460 60,146 - 20.0 - 11.1 
Black Duck <s - 618 < 309 ” = 
Gadwall - - - 2 - d z 
Baldpate 5.5 3; 11, 345 6,415 8,880 - 43.4 - 27.7 
Pintail .8 - 1, 650 - b - “ 
G-w. Teal - 1. - 2,138 825 - + 61.4 
B-w. Teal = ~ - - - = us 
Shoveler - - - - _ Z P 
Merganser 28.3 36. 58, 374 67, 884 63,129 + 16.3 + 7.0 
Redhead - 1. - 3, 208 1, 604 - + 50.0 
Ringneck eu. 7 2. 5,569 3, 742 4,655 - 32.8 - 19.6 
Canvasback - - - - = : ¥ 
L. Scaup 24.1 19. 49,711 35, 284 42,497 - 29.0 - 16.9 
Goldeneye 1.0 2. 2, 063 3, 742 2,902 + 81.4 - 28.9 
Ruddy Duck - ~ - a a v £ 
Bufflehead Le. 1 v 2,269 6,950 4,609 +206.3 + 50.8 
Scoter | 3.8 1. 7, 838 1, 604 4,721 - 79.5 - 66.0 
Total Ducks 206, 269 184,427 195,353 - 10.6 - 5.6 
C. Goose 986 3, 742 2,364 +279.5 + 58.3 

