Ducks

Ducks Geese & Swans of North America – North American waterfowl identification; Textbook. View on Amazon
Why Ducks Do That: 40 Distinctive Waterfowl Behaviors Explained & Photographed – Used Book in Good Condition. View on Amazon
Poultry Breeds: Chickens, Ducks, Geese, Turkeys: The Pocket Guide to 104 Essential Breeds – Storey Publishing. View on Amazon
Ducks of North America and the Northern Hemisphere – Used Book in Good Condition. View on Amazon
Wood Duck Adventures – Used Book in Good Condition. View on Amazon