The data on direct recoveries from bandings in southeastern 
Alberta (table 43) suggested that there may have been some difference 
in the proportions of males and females recovered in the Pacific and 
Central Flyways. However, the difference was not significant for our 
small sample, nor did the data from either of the Saskatchewan areas 
suggest a similar situation. 
A comparison of indirect recoveries of males and females, which 
resulted from bandings in southwestern Saskatchewan (table 41), 
indicated that the proportion of banded females recovered in Canada 
or the reference area of banding during the second or later years 
following banding was significantly greater than that for males 
(p< .05). This difference probably resulted from a sexual variation 
in migratory behavior, for as I indicated earlier, the general 
geographical distribution of recoveries in Canada was about the 
same for males and females. 
Another difference, which may well be associated with that above, 
was the low proportion of adult females as compared to that of adult 
males that was recovered in the area between 44° and 49° of latitude, 
or north of a line between Rochester, Minn., and Pierre, S. D., to the 
Canadian borders. The difference in latitudinal distribution of 
indirect recoveries of males and females was not reflected in 
differences in distribution among the flyways for bandings from south¬ 
western Saskatchewan. However, relatively fewer females than males 
were recovered in the Central Flyway, and more in the Mississippi 
Flyway, from bandings in southeastern Saskatchewan (table 42). 
A final difference in the distribution of recoveries of males 
and females was related to that part of the population recovered in 
the Atlantic Flyway. The proportion of indirect recoveries of males 
in the Atlantic Flyway exceeded that of females from bandings in both 
southeastern and southwestern Saskatchewan (tables 41 and 42). The 
proportions were reversed for direct recoveries. 
Bandings in southwestern Saskatchewan (table 41) produced a 
greater proportion of direct recoveries than of indirect recoveries 
in Canada and in the area of banding irrespective of sex. The 
proportion of direct recoveries tended to be lower in the Central 
and Pacific Flyways than that of indirect recoveries, but in the 
Mississippi Flyway the proportion of direct recoveries was significantly 
greater than that of indirect recoveries. The relatively greater 
kill of adults in the Pacific and Central Flyways as compared with the 
Mississippi Flyway was consistent for both sexes from bandings in 
Saskatchewan and southeastern Alberta, and although statistical 
significance cannot be demonstrated in each case, the difference is 
no doubt real. It is possible that the difference indicates that a 
larger proportion of adults than immatures migrated to the Pacific 
20 
