Favorite to eat Mallard, best looking Woody. Oddly enough the bland Black duck is my favorite. In a slow migration period they become old reliable in tidal marshes around here.
I have had both, good pedigrees with many champions and farmer bred dogs.
All have been good.
Watch the parents work, for a good waterfowl dog I look for a calm and chill dog at the house but turns it on when working. Absolutely No whiners.
Good luck and have fun.
The Nature Conservancy leases to a few deer and duck clubs in Delaware. So i don't think they're anti hunting
https://blog.nature.org/wp-content/uploads/2011/04/Hunt1.pdf