Table 14. Average sizes of waterfowl broods recorded in the mine study area 

 during 1978. 



Mallard 5.60 (2-9,n=15)-/ 



Gadwall 9.00 (7-12, n=3) 



Green-winged Teal 2.00 (n=l) 



Blue-winged Teal 5.17 (3-7,n=12) 



American Wigeon 6.71 (3-12, n=17) 



Northern Shoveler 7.50 (7-8, n=2) 



-' range and sample size in parentheses 



43 



