148 
- 
Figure 2 
Brood Chronology - Transects C, D, and E - South Dakota 

Broods Per Square Mile 

June 30 July 14 July 27 August 12 
Brood Data by Age Classes - Blue-winged Teal 


Total Number of Broods 

August 12 
June 30 pJuly 14 July 27 
Dates of Census 
