You don't need a federal permit to keep native waterfowl- only to sell/trade/give away. Native cranes, doves, etc. fall under other regulations and require other permits.
You "add" other native waterfowl by purchasing them from a federally licensed breeder who transfers them to you with a 3-186 slip. So long as you have that and the birds are properly marked per Usfws regulations you're 3/4 of the way there to your own federal permit to sell native species like wood ducks .