Waterfowl Gallery - Provides a picture and sound of common North American waterfowl, as well as breeding, migratory, and winter habitat requirements, and population status. A Ducks Unlimited, Inc. site.
Patuxent Bird Identification Infocenter - This site provides identification tips, photos, songs, similar species comparisons, life history, taxonomy, and range maps of North American birds, including waterfowl. Site created and maintained by the Patuxent Wildlife Research Center, U.S. FWS.
Teal and Wood Duck Identification Video - What Florida duck hunters should look for when identifying teal and wood ducks during the September early duck hunting season.
Ducks at a Distance: A Waterfowl Identification Guide - This guide will help you recognize birds on the wing—it emphasizes their fall and winter plumage patterns as well as size, shape, and flight characteristics.