Gadwall 



Anas sirepera 



1996-2002= 179 



Eurasian Wigeon 



Anas penelope 



1996-2002 = 13 



m 



American Wigeon 



Anas americana 



1996-2002 = 182 



American Black Duck 



Anas nibnpes 



1996-2002 = 



26 



