i got 3 different pair or trio i will be getting their eggs from to incubate them for my son to watch. i'm wanting to make a 8' by 4' pens that they can be seperated to make sure purebreed. do they need to have a pool in there as well? i'm thinking i need to seperate them about 3 weeks before i gather their eggs. so they will be locked up for about 4 weeks or so. any help would be great to see how you all do this the pairs are pekin, and runners, and a trio of rouens