Look higher up onthe BYC Forums at "'Chcikenstocks, shows, meets" , because I believe most shows, or at least APA also include "waterfowl", ie. ducks, geese,. Even little local shows include waterfowl usually. There are APA (American Poultry Association shows), 4h for kids and state or county fairs. ( Some people won't go to county shows because they say there are too many sick birds.)But waterfowl don't get near the stuff chickens get.
I also am getting Poultry Press, it's supposed to have show lists in it. I also googled, My state and "Poultry show" and found one that way....