39 
Saskatchewan Comparisons: 
eae 
1950 1951 1952 
Broods per square mile 0.9 1, 34 4.37 
Potential late broods per sq. mile 0.7 Luv 
Ponds per square mile &. 7 7.6 7.5 
Average size - Class III broods 6.5 7.1 
Number of Class II and III broods 
per square mile 1.2 3.8 
Table III - Species Composition of Breeding Population - Aerial Surveys Saskatchewan 
rn A cia ae etal 


1951 1952 
Species Pairs Per Percent Pairs Per x Percent 
Square Mile Square Mile 
Mallard aS 37.4 6.5 34.6 
Pintail 3.1 33.2 6.0 31.4 
Shoveler 0.6 6.4 1.4 7.6 
Blue-winged teal 0.6 6.4 1,z 6.1 
Baldpate 0.6 5.9 1.2 5.5 
Gadwall 0.2 1.6 0.5 2.4 
Scaup 0.4 3.7 1.0 5.0 
Canvasback 0.3 2.7 0.7 3.7 
Redhead 0.1 1.1 0.2 0.8 
Green-winged teal 0.05 0.5 0.1 0.5 
Scoter _ ) 0.2 1.1 
Ruddy duck ) 0.15 0.8 
Goldeneye ) 0.1 ‘a | 0.04 0.3 
Ring-necked duck ) 0.03 0.1 
Bufflehead ) 0.03 0.1 
Total °9,55 100.0 19.25 100.0 
* Adjusted for lone drakes. 
Table IV - Species Composition of Broods Observed During Aerial Surveys 
Species Number Percent No. Potential Percent 
Identified Distribution Late Broods * Distribution 
Pintail 626 51.2 80 11,2 
Mallard 389 31.8 176 24.6 
Baldpate 29 2.4 93 13.0 
Shoveler - 85 6.9 63 8.8 
Gadwall 24 1.9 81 11.3 
Blue-winged teal 34 2.8 110 15.4 
Scaup 5 .4 42 5.9 
. Ruddy duck 6 5 25 3.5 
Canvasback 19 1.6 4 6 
Other 6 ~» 41 S57 
RE Eh Te ee es ey ee ee 
Total 1,223 100.0 715 100.0 
* Determined by the number of pairs, single females and ldne drakes 
seen during July transects. 
