Our feed store had many breeds available. I think they just ordered large batches from hatcheries, because they just put you on a wait list and told you which day the particular breed was going to arrive. I originally wanted Khaki campbells, but they arrived about two months later than the muscovy we were getting. I didn't want to have a brooder set up twice, so I bought the cayugas instead because they were shipped to the feed store at the correct time for us.
Now I love the cayugas, they are my prettiest poultry.
I did not buy the muscovy from the feed store but instead bought them via internet and had them shipped. I was much happier buying at the feed store because, due to a shipping mix-up, we lost several ducklings in the mailing process. I was unhappy that three ducklings died so that we could recieve muscovy so next time would prefer to buy local.