Hello! I'm a farmer of sheep and chickens but over the past couple of years I've had more and more customers asking for duck eggs. I'm located in Southeastern MA. Over the past 6 months or so I've been giving it serious thought. I need to know a few things that I was hoping someone could help me with. 1.)Do all ducks require water to swim in? 2.)Do they lay all year like chickens? 3.)Can they eat layer pellets or is it a special grain? 4.)What kind of shelter do they need? 5.)How winter hardy are they? 6.)What breed is best for laying? 7.)How much do you charge for eggs? Thank you!