adriaticum
03-30-2013, 05:26 PM
Excellent guide for waterfowl in North America with pictures and sounds.
http://www.ducks.org/hunting/waterfowl-id (http://www.ducks.org/hunting/waterfowl-id)
http://www.ducks.org/hunting/waterfowl-id (http://www.ducks.org/hunting/waterfowl-id)