
Comparison of July Brood and Late Nesting Indices 
Southern Manitoba - 1957 and 1958 
Percent 
| Stratum "A" Stratum "B" Strata "A" & "Bp" C} ie 
Species 197 td 1937 “1957 1950 1957-58 

Duck Brood Index 
All Species 37,700 39,400 22,700 23,400 60,400 62,800 / 4&4 
Late Nesting Indices 
Pintail 200 2,600 2,800 , 2,100 3,000 4.700 
Mallard 10,200 14,500 3,700 9, 300 13,900 23,800 
Baldpate 200 6,500 = 2,100 200 8,600 
Shoveler 300 800 - + 300 
Gadwal1 900 700 - = 900 JOO 
BeW Teal 3,100 12,200'° - 3,600 3,100 15,800 
G-+W Teal 100 500 - “ 100 500 
Scaup 700 8,600 - 2,600 700 11,200 
Canvasback ws 1,700 - 2,600 - 4,300 
Redhead 200 2, a 500 200 3,100 
Ringneck 100 1,600 - - 100 1,600 
Ruddy 1,200 2, 1,800 3,100 3,000 5,500 
Goldeneye 700 = . 700 LOO 
Bufflehead - 300 = 500 - 800 
Black Duck - - - 500 - 500 
Scoter = 100 “ - = 100 

TOTAL 17,900 229 300 8, 300 



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