107 
Table V - Breeding Population and Production, Caron Pothole Area - 1950-1952 
a a ee ee ee A OM 2 OenOle Rea eee eee 
BREEDING POP, BROOD COUNTS 
in pairs JUNE AUGUST Total Broods 
1950 1951 1952 1950 1951 1952 1950 1951 1952 1950 1951 1952 
Blue-winged teal 75 90 143 - 13. 21 12 26 = 53 12 39 £74 
Shoveler . 42 52 34 1 6 3 10 13 #210 11 19 = 13 
Pintail 35 57 79 Ll 22 23 4 6 12 5 28 35 
Mallard 31 34 #111 3 8 29 10 2 29 13. «10 =~ «658 
Baldpate 28 24 26 - 3 8 13 9 9 13 12 17 
Gadwall 18 33 40 - ~ 1 8 11 1] 8 11 12 
Lesser scaup 7 8 9 - 1 - 3 6 14 3 7 14 
Redhead 2 10 23 - - l 2 2 4 2 2 5 
Green-winged teal 1 5 14 - ] 1 1 4 1 2 7 
Ruddy duck 1 4 6 - « - 1 4 - 1 4 ~ 
Canvasback - 4 5 - - - 1 3 - 1 3 
Unidentified - - - - - 10 21 15* 21 21 15 31 
Total 240 321 490 5 54 99 85 96 170 90 150 269 
No. per sq. mile 56.3 75.5 115.3 1.1 12,7 23,3 20.0 22,6 40.0 21.1 35,3 63,3 
* Females had abandoned some broods while still flightless. These were 
rafted on the larger sloughs. It was impossible to count them in broods, 
so the total was taken, divided by 6 (average brood), and expressed as 
broods. 
Southey Study Area - Saskatchewan 
Description - The study area, 2 square miles in extent, is located 41 miles north 
of Regina, Saskatchewan, specifically sections 32 and 33-23-18 W2. It lies in the 
transition between the Dark Brown and the Black soil zones. Numerous "bluffs" 
or groves of willow and aspen are characteristic of this transition. The topography 
is rolling with numerous sloughs and potholes most of which are willow and aspen 
ringed. All suitable land is cultivated, the only land not under cultivation is 
farmyards and sloughs and a few stony areas which are in pasture. 
Pond Conditions During Breeding Season - All 125 ponds within the area were full 
when first inspected April 24. Spring runoff was very light but there was a good 
carry-over of water from the previous fall. There was very little rain in the month of 
May and temperatures were high, resulting in 41 ponds drying up by May 22, and 
34 others with less than 6 inches of water. Evaporation was high during the months 
of June and July resulting in 25 ponds remaining by June 24 and 6 by August 7. Only 
3 of the remaining 6 usually last through the summer; of the other 3, 2 are sloughs in 
which dugouts are located, the sloughs were dry but the dugouts were full, the other 
is a dugout located in a small dry ravine and at no time supported ducks. Of the 5 
broods counted in August, 4 were found on the 2 dugouts located in the sloughs. 
There was little emergent cover suitable for nesting cover for the over- 
water nesting species. Only one pond contained cattail and a small amount of 
roundstem bulrush, this pond was dry by August. All ponds had very heavy grass 
cover. 
