Table V.- Brood Counts, Area II*. 

Total 
Species June July August Production 
Mallard - 7 11 15 
Pintail 1 18 39 49 
B-w. teal - 1 26 26 
Shoveler - 8 8 9 
Baldpate - - 6 6 
Gadwall - - 1 1 
Scaup - - 6 6 
Totals 1 34 97 112 
* Age classification of broods on each count used to compute total 
individual broods seen. 
A breeding population of 319 pairs producing 112 broods by August 1 
represents a breeding success of 35.1 percent. Thus with an August brood average 
of 6.6 ducklings per brood 319 pairs produced at least 739 young or an increase of 
116 percent in area population. 
Table VI. - Brood Counts, Area III. 
Total 
Species June July August Production 
Mallard | 4 5 19 ad 
Pintail 1 Zz 2 4 
Gadwall - - 1 1 
Baldpate - ] 5 6 
B-w. teal - 6 54 54 
G-w. teal - 2 8 9 
Shoveler - - 2 Z 
Redhead - - 1 1 
Canvasback 1 if 8 8 
Scaup - - 8 8 
Ruddy - - 8 8 
Bufflehead - - 1 1 
Totals 6 18 117 124 
This study area began the season with 489 breeding pairs. One hundred and 
twenty-four broods represents a brood success of 25.3 percent. The average 
brood size per Class III brood was found to be 5.83 ducklings per brood. In other 
words 124 broods comprised 723 ducklings of flying age or a reproduction of 72 
percent above the breeding population. 
