There are a few out there. Haven't seen them all.
The LeMASTER METHOD by Richard LeMaster is very good.
The binding is cheap but the quality of the illustrations are "perfect".
The way it works is you start out by looking at the bill and picking from a bill chart. That takes you to a page with pictures of the duck and pictures of its wings and also pics of the different 'eclipse' stages etc. Has a page for each sex of that species. Also tells about the typical flight height and pattern of flocks.
At the back are pictures of what the feet should look like. This book has a lot of detail in it. Great for a beginning duck hunter.
Have settled a few arguments by having that little baby on me in my bag. Keep it in a ziplock bag.
http://www.amazon.com/Waterfowl-Identification-LeMaster-Method-Richard/dp/0811729826