Table IIl. - Brood Averages for the Mallard for Each Year Since 1937. 
a a 

205 

Year Class I Class [I Class 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 7.5 67 
1948 7.1 7.6 6.8. 7.2 102 
1949 4.8 6.8 6.7 6.4 31 
1950 8.1 7.2 6.6 7.0 49 
1951 6.6 6.8 6.3 6.5 92 
1952 4,5 7.2 6.7 6.6 127 
1953 7.5 5.7 5.6 579 18 
1954 7.8 7.0 5.5 6.6 44 
1955 7.0 Hit 7.0 7.0 51 
During the 1955 survey Class III broods exceeded Class I broods by 
88 percent. Class III and Class II broods were equal. Maternal hens and 
incomplete broods were not included in the figures. 
Table IV illustrates adult-juvenile ratios for all ducks seen on the 
census for both 1954 and 1955, 
Table IV. - Adult-Juvenile Ratios, 
Species Adults 
Mallard 113 
Baldpate 83 
Goldeneye 112 
B-w. Teal 20 
Ringneck 29 
Wood Duck 8 
Other 4 
1954 and 1955. 
1954 
429 
307 
209 
107 
“23 
5 
3 
Juveniles 
Ratio Adults > 
1:3.8 135 
| Sa re | 132 
lele9 44 
1:5.3 15 
1:0.8 16 
1:0.6 4 
1:0.8 5 
1955 
Juveniles 
452 
342 
127 
10 
59 
18 
2 
Ratio 
a 
tf en an en oa an Ca 
oh WON NW WwW 
+ 
BU sy =) OO on WW 

