I've recently acquired ten pullets, who are happily settling in to their 5 x 8 coop, and 5 x 8 enclosed run, and I guess I caught the "bird bug" because a friend offered me a chance to get some ducks and I jumped on it- they arrive July 1. Two baby boys and three baby girls of an assortment of breeds. I'll be building them their own coop/run/pool, but I was wondering what kind of size/height/material/etc requirements duck habitations have versus chickens. I know several people who have chickens and ducks that live together, and I would love for all of my birds to be able to play together. I was thinking separate coop/runs that can be attached or separated so they can all play together in one big extended double coop/run combo, or I can have them separate if need be or at night for instance. Another big question was that of the pond/free ranging. I intend on giving them a pond in their enclosure so they will always have access, but not too far from where they live is a small natural pond (think roughly the size of your average in ground swimming pool, maybe a bit bigger depending on the time of year and rain fall). I would love it if they were able to go swim in their too, but it is far too big and in the woods a few feet to reasonably fence it in. The chickens, when they're bigger, are going to be allowed to free range around the property when someone is home... I've heard a lot about ducks free ranging more safely than chickens because they can fly. Thoughts? Thanks a ton!