
Table 5 = Comparative Date, July ‘1957 Aerial Surveys, Southern Saskatchewa 
Percent 

Bropds Per Square Mile 3.7 5.4 + 45.9 
Brood Index 422,200 615,839 + 45.9 
Potential Later Broods | 
Per Square Mile 2.28 0.95 = 58.4 
Late Nesting Index 261,100 108,562 = 54,4 
Ponds Per Square Mile - 18.57 10.99 ~ 40.8 
Pond Index 2,118,200 1,254,010 - 40.8 
Coot Brood Index 81,800 254,178 +210.7 
Broods Per Square Mile 
Strata AW 3.09 4,26 +: 37.9 
Strata AE 3.09 5.81 + 88.0 
Strata BE 55 8,02 + 45.8 
Strata BW 3.34 4.12 + 23.4 
Strata C 1.45 2.27 + 56.5 
Potential Later Broods 
Per Square Mile 
Strata AW 2.8 0.87 - 70.4 
Strata AE. 3.4 FAP io - 31.5 
Strata BE ps 17 0, 89 - 59.0 
Strata BW 1.26 0.50 60.3 
Strata C 0.94 0.20 - 78,7 
Ponds Per Square Mile 
Strata AW 13.36 6.65 = 50.2 
Strata A'E 49.80 27.63 = 44,5 
Strata BE 17.10 12.98 - 24,1] 
Strata BW 14.40 7.10 - 50.7 
Strata C 5.89 a. 13 = 46.9 
Coot Brood Per Sq. Mile | 
Strata AW . 0.45 1,24 4175.5 
Strata AE 0.30 0.59 + 96.7 
Strata BE 1.55 4.90 +216.1 
Strata BW 0.40 1.54 4285.0 
Strata C 0 0.25 = 
a CD PS 
50 
