63 
By subtracting the potential as of August 4-6 from the breeding pair counts 
in Table II and comparing them to the brood population in Table VI , the success of 
the breeding pairs (percent of successful females) can be approximated as shown in 
Table VII. 
Table VII. - Percent of Females Producing Broods. 

1952 1953 1954 
Mallard 46.2 39.1 21.3 
Blue-winged teal 46.3 42.0 23.3 
Pintail 29.7 37.0 6.9 
Baldpate 40.0 66.7 15.0 
Green-winged teal 46,7 19.3 13.3 
Canvasback 39.1 86,4 30.4 
All others 26.2 50.0 33.23 
Averages 42.4 42.8 19.7 
From the above data we find 1954 brood production down for all species. 
However, some of the late nesting species such as the scaup, ring-neck, gadwall 
‘and ruddy duck were not as seriously affected by the cold, wet weather of May and 
June. The total number of these species on the area is too few to allow accurate 
analysis by species. 
For the third consecutive year, nesting success data and broods produced 
per female have paralleled each other quite closely. 
Table VIII. - Nest Versus Brood Data. 
1952 1953 1954 
Mallard | 
Nesting success in percent 56.9 48.9 24.1 
Percent of successful females 46,2 39.1 21.3 
All Species 
Nesting success in percent 49.5 50.1 28,0 
Percent of successful females 42.4 42.8 19.7 
