104 


Table II. - Brood Production - Caron Potholes. 
Species 1950 1951 1952 1953 1954 1955 
Blue-winged Teal 12 39 74 108 84 - 140 
Pintail 5 28 35 37 28 29 
Shoveler ll 19 13 32 26 16 
Mallard 13 10 58 53 47 22 
Gadwall 8 ll 12 14 24 23 
Baldpate 13 12 17 19 17 27 
Redhead 2 2 5 7 - 2 
Lesser Scaup 3 7 14 24 12 6 
Green-winged Teal 1 2 7 - 3 l 
Canvasback - l 3 3 4 5 
Ruddy Duck l 4 - 3 1 - 
Unidentified 21 15% 31* 12* 7 3 


Total 90 150 269 312 253 274 
Per Square Mile 21.1 35.3 63.3 73.4 59.5 64.4 

* Rafted broods on larger waters without females. Total 
count taken and converted into broods by dividing 
by six. 
Forty-eight percent of the breeding pairs are estimated to have 
produced broods. This is about average when compared with 41 percent in 1954, 
52 percent in 1953, and 54 percent in 1952. Mallard production was again poor 
at 20 percent and pintail slightly better at 33 percent. Figures for 1954 were 
24 and 35 percent and for 1953, 34 and 52. It should be pointed out however, 
that broods of these species are much more difficult to see and, while the per- 
centages given may be comparable from year to year, they cannot be construed 
as the total production from the May population. 
The blue-winged teal again had an exceptional season producing 140 
broods from an estimated 149 breeding pairs. Undoubtedly more breeding 
pairs must have moved into the area after the May breeding pair count fora 
nesting success of 93 percent is most improbable. 
SOUTHEY AREA -~- SASKATCHEWAN 
R. T. Sterling 
At freeze-up in 1954 all the ponds in the two square mile study area 
contained sufficient depth to insure good water conditions for the 1955 waterfowl 
breeding season. A substantial spring run-off coupled with above normal rainfall 
