Ducks 



Blue-winged Teal 



Anas disc or s 



-w 



w 



W--W 



--W--W 



Cinnamon Teal 



Anas cyanoptera 



-w 



W--W 



Northern Shoveler 



Anas clypeata 



WW 



w 



W--U 



--Uw-w 



-w 



Gadwall 



Anas strepera 



UU WW-- 



WW--W-W 



W--W 



--WW-wW--- 



-w 



t t 

 b 



B 

 B 



b B 

 B 

 b 



t b 



b 

 b t 



B 



b 

 B 

 b t 



B B 

 B 



t t 

 b 



B 



t B 



B 

 b b 



b 

 t 

 b t 



t t 

 B 



B B 



B 

 B b 



B 

 b B 



B 



B 

 B B 



B 



B 

 t t 



b B 

 B 



B 



B 

 B 

 B b 



b 

 B 

 b B 



B B 

 B 



b 

 B 

 b b 



B 

 t t 



b B 



B 

 b 



19 



