Table 3. Average brood sizes by age classes, 1958 and 1959 
Species Class I | Class II Class III . 
and. No. of Ave. No. of Ave. No. of Ave. Total 
Year Broods Size Broods Size — Broods Size Broods 
Black Duck © 
1958 18 8.2 4g tee 32 6.7 98 
1959 e2 ToT ho 6.8 27 6.3 89 
Ring-necked Duck 
1958 ~1O 9 3 10.0 13 
1959 9 T7 h 8.5 13 
Goldeneye 
1956 8 6.5 8 3.1 16 
1959 9 5.8 5 54h ae 
Blue~winged Teal . 
195 T 9.7 6 - 10.3 13 
1959 27 9.0 10 9,2 37 

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