SOUTHERN ALBERTA - Continued 
Table 4, Percent Lone Males in Early Nesting Species 
(Pintail, Mallard and Canvasback ) 
Year Spatum A Stratum B Stratum C Province 
1957 90% 92% 89% 90% 
1958 85% . 87% | 76% 85% 
1959 75% 68% TO% 71h 
7-Yr. Average 80% | 83% 12% 80% 

Table 5. Aerial Waterfowl Population Indices in 1959 as Compared 
to 1958 and to an 8-year Average 
| 8-year Percent Change From 
Stratum 1958 | 1959 Average 1958 Average 
A 1,104, 459 1,029, 365 1,081, 111 - 7 - 5 
B 1,544,649 1,627,552 1,188,159 / 5 } 37 
Cc. 418,525 510,107 392,363 f 22 # 30 


ee ne ee ee Se ae a ee 

Total 3, 067,633 

31 
