My husband is insistant that our 4 Swedish ducks will b happier living at our pond. I do agree that them having free access to the pond would b great for them. They are going outside. They are 2.5 months and its time! We have a house structure for them to sleep in an get in to get out of the elements. My concern is when to feed them each day? Do I feed just once a day? Also, if they have access to the pond all th time do I need to keep water out for them too?