
Summary of Central Flyway Waterfowl Indices | 
Waterfowl - The population index has shown no consistent trend up or down 
in the Central Flyway for the years 1950 through 1955. The 1955 
index is 19 percent above the 6-year average and compared to 
individual years is: 
19 percent below 1954 
3 percent above 1953 
8 percent below 1952 
22 percent above 1951 
4 percent above 1950 
Ducks - The 1955 duck index is 3 percent above the average for the 6-year 
period 1950-55 and compared to individual years is: } 

11 percent below 1954 
3 percent above 1953 
4 percent below 1952 
24 percent above 1951 
11 percent above 1950 
Among the ducks, the indices were: 
1. About the same for: pintail and ringneck. 
2. Noticeably up for: mallard, green-winged teal, 
shoveler, blue-winged teal and goldeneye. 
3. Noticeably down for: redhead, scaup, baldpate, 
gadwall, convasback and ruddy. 
Geese - The population index for geese for 1955 is 10 percent below the 
average for the past 6years and compared to individual years is: 
‘28 percent below 1954 
2 percent above 1953 
27 percent above 1952 
3 percent above 1951 
35 percent below 1950 
Compared to 1954 the snows, blues, and Canadas decreased noticeably 
and the white-fronted geese increased. 
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