I have had chickens for years. The chickens get let out of the coop into the pen during the day, sometimes get let out to range free, and get locked in the coop at night so predators dont get them. Is this pretty much how ducks work?? I really want ducks, I'm thinking a pair of Cayuga's to start with. I have a pond not far from the chickens, can I let the ducks out during the day to hang out in the pond or should I have an enclosed pond for them? Do I need a separate pen and coop or can they share? Do ducks have that roosting instinct? Are Cayuga's a good choice? Thank you!!