Waterfowl Identification: The LeMaster Method
National Audubon Society Pocket Guide: North American Waterfowl (National Audubon Society Pocket Guides)
Guide to Ducks and Geese
Ultimate Guide to Calling and Decoying Waterfowl: Tips And Tactics For Hunting Ducks And Geese
Waterfowl of Eastern North America
Waterfowl of North America: A Comprehensive Guide to All Species
Decoys and Proven Methods for Using Them
Cornell Lab of Ornithology Waterfowl ID: #2 Dabbling Ducks & Diving Ducks
Ducks, Geese, and Swans of North America: 2-vol. set
Wings on the Water: The Great Gallery of Ducks, Geese and Loons