Ducks at a Distance
- Provides tips for identifying various species of waterfowl in flight. From the U.S. Fish and Wildlife service.
- http://www.npwrc.usgs.gov/resource/birds/duckdist/duckdist.htm

Keep the Waterfowl Comeback on Track
- Help create habitat where ducks can feed, breed, rest, and nest. Learn how to build a nesting cylinder.
- http://www.hww.ca/hww2.asp?cid=43&id=184

Order Anseriformes (Waterfowl)
- Articles about species belonging to the order which includes ducks, geese and swans.
- http://animaldiversity.ummz.umich.edu/site/accounts/information/Anseriformes.html