Put a mallard and two Canadas in the smoker on New Year's Eve, and they came out awesome. Liked the mallard much better than the goose, but one goose went fast at a NewYear's Day party I took it to.
Had a teal hen in the freezer, whole, unplucked, for a couple of months - was going to have it mounted alongside a teal drake. Decided that she was too plain-looking, so thawed 'er out and ate 'er instead. Breasted it out, sliced the meat thin, then cooked the slices in butter. After a minute or two, threw in some sherry, then some strawberry jam. Tasty!
Wood ducks are good, too. Tried some ringnecks once, but they were to liver-y, even after soaking to get the blood out.
Believe it or not, coots are OK. Long story short, some new friends I made while hunting told me they love them. You have to skin them and get all the fat off, gut them (they save the gizzards, but I can't bear to, and yes, the guts stink, but all bird guts do, especially turkeys!), then bread them and fry them. Better than those ringnecks!