6h 

Table 4 = Comparative Brood and Late Nesting Indices (Aerial} - Southern Saskatchewan 
- 
Surveys, 1953 = 1957 
















Species 1953 1954 1955 1956 1957 
2 (Not speciated) 183, 600 100,400 317,400 422,200 615,839 
Pintail 32,900 11,500 79, 400 18,200 5, 385 
Mallard 107,900 82,900 180,400 79,700 41,507 
Baldpate 21,100 “17, 000 21,300 12,000 4,012 
Shoveler 13,400 5,200 22,800 12, 000 2,243 
Gadwall 14,800 13,800 28,500 16,400 3,460 
(9 Blue-winged Teal 35,400 24,100 77, 600 54, 300 11,767 
O Green-winged Teal 3,500 5,500 8, 000 2,200 1,381. 
A : 
4 Subtotal Puddlers 229,000 160,000 418,000 194, 800 69,755 
2 Scaup | 28,500 11,300 44,300 26, 200 27,504 
fF Canvasback 15,700 2,700 15,500 7, 300 1,707 
fj Redhead 8,000 4,200 8,400 10,500 1,943 
Z Ringneck 3,000 4,500 3,700 100 204 
f] Ruddy Duck 14,000 18,000 20, 000 21, 300 7,449 
Ei Goldeneye 0 1, 800 0 0 0 
1 Bufflehead 500 0 900 0 0 
Scoter 2,500 1,200 4,100 900 0 
Subtotal Divers 72,200 43.,700 96,900 66, 300 —-38, 807. 
Grand Total Ducks 301,200 203,700 514,900 261, 100 108,562 
a ene ra 
Coot Broods 8, 380 4,400 21,000 81, 800 254,178 
Pond Index 2,551,400 3,037,100 3,793,700 1,753,200 1,254,010 



AVMATA TVULNAD 
