17 Different Types of Ducks - Duck Identification

All species of ducks: Puddle duck, Gadwall, Widgeon, Shoveler, Teal, Diving Ducks, Redhead. Types of Geese: Canada Goose, Snow Goose, White-Fronted

Ducks of the UK: how to identify, behaviours and when to see them

Duck - Wikipedia

Argentina Duck Species, Blog

Duck, Definition, Types, & Facts

Similar Species to American Black Duck, All About Birds, Cornell

17 Different Types of Ducks - Duck Identification

Waterfowl Identification: The LeMaster Method: Richard LeMaster

Wood Duck Biology, Life History, and Identification - Waterfowl

Wood ducks: Minnesota's most colorful waterfowl