I hope someone answers you because I have the same question. Their prices are not unreasonable. But I'vd e-mailed them and they take a long time to answer. Haven't been able to contact them by phone.
I never ordered from them before but one of the things that I would be concerned about is the fact they get their birds from many hatcheries rather then produce their own. Are you only looking for ducklings rather then eggs? Their are plenty of good breeders that sell hatching eggs.