69 
late Nesting Index 
Broods 
Table 7. Comparative Brood and Iate-Nesting Indices (Aerial) - Southern Saskatchewan - 
Ji Surveys 1952-59 | 

6-Yr. Avg. . 
Species eS 7 tt 57) Gn >? ne > ae <>) 1958 
Wot . 
Speciated 358,100 317,400 422 ,200 615,839 253,135 105,757 
Pinta.) "26,000 19,400 15,200 #»5,305 31,000 3,160 
Mallard 89, 400 180, 400 _ %9,700 41,507 182,600 80,000 
Baldpate 15,600 21, 300 12,000 4,012 23,200 15,2C0 
Shoveler 11,200 22,800 12,000 2,243 10,900 2,700 
Gadwall 14,900 28,500 16, 400 3, 460 16,700 5,400 
B. W. Teal 36,900 77,600 5h, 300 11,767 50,200 36,200 
G. W. Teal 3,800 8,000 2,200 1, 381 100 1,Cc0C 
Sub-Total Paddlers 196 6008, 000 LO -800 60,7 73 “319,600 ie Tha, 000 
Scaup i (t—~S Br ho0 500 36,00 87 568 F958 00 10,600 
Canvasback — 7,300 15, 500 T > 300 1 FO T,TOO 3, 500 
Redhead 6,000 8,400 10, 500 1,943 8,200 1,000 
Ringneck 1,900 3,700 100 20h, 2,800 1,700 
Ruddy Duck 14,600 20,000 21, 300 7,49 13,900 17,700 
Goldeneye 500 - - - - 1,100 
Bufflehead 200 900 | - - - 200 
Scoter 1,500 1, 100 900 - 900 2,200 
Sub-Total Divers _ 56,80 Onc: 96,9 Oo. 56,300 ibd 30,807 —_ 68,900 _ ____ 303200 
GRAND TOTAL DUCKS 255,000 514,900 261,100 - 108, 562 388, 500 182,100 

Coot Broods 66,400 21,000 ~ 81,800 254,178 21,597 5,412 

POND INDEX 2,207, 400 3,793,700 1,753,200 1,254,010 764, 942 428,423 

Number Ducklings 
Per Class III Brood 5.9 6.0 5.6 6.0 4.3 3.74 
