
C arison of Aerial Brood avd Late Nesti Indices in Southern Manitoba 
1956 and 1957 


1956 1957 Percent Change 
Duck 
Broods Not Speciated 2h. ,900 60,400 A142 6% 
Species 
Pintail 2,700 3,000 
| Mallard 18,600 13,900 
Late Baldpate 1,500 200 
Nesting Shoveler 1,500 300 
Species Gadwall 900 900 
BW. Teal f »100 3,100 
GoW. Teal 2,200 100 
Subtotal - Puddlers 34,500 21,500 = 37-Th 
Scaup 2,200 700 
Canvasback 606 “ 
Redhead 3,000 200 
Ringneck 300 100 
Ruddy 6,200 3,000 
Goldeneye - 700 
Subtotal - Divers - 12,300 4,700 - 61.0% 

Grand Total 46 ,800 26 ,200 - 4.0% 

82 
