Table ITI, - Indices to Total Broods and Potential Later Broods* in Southern Saskatchewan** as Determined by 




1951 Index 1952 Index 1953 Index Percent Change from 
Species Broods P.L.B.* Broods P,L.B.* Broods P.L.B.* 1952 
Mallard - - 155,510 44,030 92,130 107, 890 - 40 
Pintail 272, 160 13,510 36, 250 32, 870 - 87 
B-w. Teal ; 17,500 18,470 7,890 35,380 - 55 
G-w. Teal a 800 1, 860 0 3,460 ~100 
Gadwall Te isnt 7,580 12,450 8,120 14, 840 + 20 
Baldpate 9 ty 10, 520 18,000 8, 850 21,080 - 16 
Shoveler y ce 32, 380 11, 670 18,550 13, 390 - 42 
Black Duck ats 0 0 0 0 
go = 
Total Puddlers a e 496,450 119,990 171,790 228,910 - 63 
° 
< 
° 
Redhead a 2 420 3,220 0 7,970 -100 
Canvaspack ws o 6, 840 830 7,220 15,660 + 6 
Scaup 6 1,530 8, 700 3,870 28,450 +150 
Ringneck v 420 0 0 2,990 -100 
Ruddy duck me 3,150 7,130 750 14,020 - 75 
Scoter a’ 390 0 0 2,540 
Goldeneye ay 0 920 0 0 
Bufflehead 0 0 0 450 
Total Divers 12, 750 20, 800 11, 840 72, 080 - 8 
Total Ducks 170, 800 85,130 509, 200 140, 790 183, 630 300, 990 - 64 
Coot 2,550 16,950 28,775 84,230 8, 380 53,480 - 71 
* P.L.B. (Potential Later Broods) is determined by recording the number of pairs, lone drakes, 
Aerial Survey 
Rg ie PRE SUEY ee ee el 
and lone hens still on transect during the July survey. 
**x Square Miles in the area sampled - 114, 040; total square miles surveyed in 1953 - 685.5 
