Free: Contests & Raffles.
I don't know anyone that shoots "Hollywoods" aka spoonbill/shoveler on purpose. Now I've never shot a merganser or eaten one so I don't know how they taste. The people I've hunted with over the years in Eastern WA. would not shoot them as they referred to them as a "POS" and not worth eating. Someday I would like to harvest a mature fully plumed drake Shoveler for the wall. I've seen lots of photos with shovelers being affected with rice breast.
I actually really enjoy targeting shovelers getting them as there Decoying in. They decoy a little different then most ducks and there's just something about them that I like. As far as rice breast it has never been an issue for us. Never seen them with it. Now as far as taste of the different ducks I soak my meat overnight and it draws a lot of the blood out which makes the meat a milder flavor. I mix all the duck together and then mix an equal amount of elk or deer burger with and then make salami for sandwhiches. That's my favorite way of doing it. If I was to cook it differently I would probably pass on different kinds of ducks like mergansers. Because I don't consider myself Lokidog quality chef. But that puts my season total of ducks at 40 so far. Haven't put in as much time as I normally do but still getting out little bits here and there.