The wood duck was found to be the most common nesting species, followed 
by the mallard, blue-winged teal, black duck, hooded merganser, and ring- 
necked duck, in that order. It appears that the blue-winged teal is a more 
common nesting species than had been previously thought. Canada geese nest 
annually on the Jasper-Pulaski State Game Preserve in northwestern Indiana. 
Water and weather conditions had little or no apparent effect on water- 
fowl production in Indiana in 1949. 
First broods hatched during the last week of April, thus indicating that 
the survey should have been initiated a month earlier. 
No summer banding was done. 
The average number of ducks per linear mile on river and car transects 
was 3.4 and 2.3, respectively, while ducks per square mile on etudy areas 
averaged 7.6. 
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