232 

Table III. - Brood Averages for the Mallard - 1937-1954. 

Year I II III All No. of Broods 
1937 - 6.3 6.5 6.5 56 
1938 8.8 7.8 6.5 7.3 166 
1939 8.8 7.6 7.4 7.8 256 
1940 8.7 7,4 7.0 7.8 94 
1941 - 7.3 6.7 6.9 17 
1947 7.8 7.9 7.0 tS 67 
1948 7.1 7.6 6.8 7.2 102 
1949 4.8 6.8 6.7 6.4 31 
1950 8.1 7 6.6 7.9 49 
1951 6.6 6.8 6.3 6.5 92 
1952 4.5 7.2 6.7 6.6 127 
1953 7.5 BAT 5.6 5.9 18 
1954 7.8 7.0 5.5 6.6 44 

During the 1954 survey Class III broods exceeded Class I broods by two- 
thirds and exceeded Class II broods by about one-third. Maternal hens and incomplete 
broods were not included in the figures. 
Adult-juvenile ratios - 1953 and 1954: Table IV illustrates adult-juvenile 
ratios for all ducks seen on the census for both 1953 and 1954, 
Table IV. - Adult-Juvenile Ratios for All Ducks Seen on Census for 1953 and 1954. 
1953 1954 
Species Adults Juveniles Ratio Adults Juveniles Ratio 
Mallard 164 170 1:1.0 113 429 1:3.8 
Baldpate 101 104 1:1.0 83 307 1:3.7 
Golden-eye 58 256 1:4.4 112 209 1:1.9 
B-w. teal 7 24 1:3.4 20 107 - 1:5.3 
Ring -neck 10 - - 29 23 1:0.8 
Wood duck 6 13 LZ 8 5 1:0.6 
Other 4 7 1:1.7 4 3 1:0.8 
The ratio of adults to juveniles for all species for each year of the census is 
as follows: 
1937 ae os 1940 1941 noel ee 1949 1950 1951 ate naa2 1954 

