Se 
PACIFIC FLYWAY 
SOUTHERN ALBERTA - Continued 
Breed Po tion Indices 
Early season impressions have been confirmed and our provincial 
breeding pair index is at its highest level being 18% above the seven-year 
average and 14% above the 1957 index. This represents a significant in- 
erease with Strata B and C showing the greatest change. Nearly all specie 
indices have raised. Only the pintail, green-winged teal and minor diving 
species have indices lower than average conditions (See Tables 2 through 5). 
All indices except for scaup and goldeneye are in excess of 1957 figures. 
Table 2. Co son of Aerial Waterfowl Population Indices - 1957-1958 
Strata A Province 
Strata B Strata C 
1957 1958 1957 1958957 OSB T9577 195 
Square Miles 22088 22088 — 26100-26100 -=—=«éue2 16122 ~—«644300__—(64300 
Sample Area 
Square Miles — 0.5,  5e005  S7os0. 276.0 17leO 171.0 1075.5. 1075.5 
Total Ducks 
in Sample 24416 26328 20032 22370 2638 TOIB I Se) 47086 531.40 
Total Ducks 
Square Mile 46037 50.00 53000 59018 15.43 = 25.98 3. 
Index in 
Total Ducks 3.024251 1104459 1383210 1544649 - 248553 418525 2656014 3067633 
Percent : me 
Change he & Le 68 L5 
Table 3. Com son of Aerial Waterfowl Population Indices - 1958 
Strata A Strata B Strata, C Province 
7 Year 7 Year 7 Year 7 Year 
Average 1958 Average 1958 Average 1958 Average 1958 

Index in 
Total Ducks 1088505 110/459 1125395 1544649 375549 418525 2589436 3067633 
Percent 
Change 1 3 11 18 
25 
