I think I'll get some (4-6) mallards the week after next but I have several questions. A couple points before the questions: I live on 5 acres and have a small pond (1/4-1/2 acre) back near the woodline. I also have a 3 year old English Springer Spaniel. No kids or wife or cohabitant.... The questions: How are ducks on concrete? I have a space I can fence in that would have 1/2 concrete and 1/2 grass. The space is about 10' long and 6' wide. How soon before I can let them out for good? I don't plan on letting them in every night etc. I also won't be surprised if they decide to strike out own their own but hopefully if I raise them they will at least hang out here all summer. I will have to allow them to fly or they will certainly be eaten by coyotes/foxes/raccoons etc. How cold is too cold for them to stay outside? By the time I get them I would imagine the night temps will be in the 50s, I was planning on keeping them in the screened in porch with heat lamps etc. Rubbermaid tub is acceptable for a few weeks? I'm sure lots of folks have done this, just wondering if it is worth the trouble or not?