Ducks at a Distance: Provides tips for identifying various species of waterfowl in flight. From the U.S. Fish and Wildlife service.
Keep the Waterfowl Comeback on Track: Help create habitat where ducks can feed, breed, rest, and nest. Learn how to build a nesting cylinder.
Order Anseriformes (Waterfowl): Articles about species belonging to the order which includes ducks, geese and swans.