Number of Birds (Millions) 
10 
Mississippi Flyway 

9 ———-—- Atlantic Flyway 
0 
1949 1951 = 1953 1955 1957 1959 1960 1963 
YEAR 
FIGURE C-2.--Trends in numbers of wintering 
ducks, by Flyways, 1949-63. 
95 
