Quote: I agree to some degree with all that I am reading, and it sounds like you have a nice set up. I will share ours as well because the more info you have from everyone the better you can make your own choices.
I have only had them since last year when someone (5PinkBunnies) brought me a nice little partridge roo named Chuck. Her kids were quite attached to him, and he was crowing so we said we would take him to re-home. My son became attached and we do not keep but so many roos after they hit a certain age so we went to the WCA and got him a female, so my son could keep him. They do free range in a tractor run. It has a plastic hardware cloth on top so that flying predators can not pick them up and take off with them. Right now while it is cold out they are all in the un-heated side of the green house. They are free of draft in there, but not heated.
The young ones that I got from Beth were from 11-23-12 & 11-30-12, so they are still in-doors in a large tub with pine shavings, but when we have a nice day out the range inside of a tractor so that they can get more sunshine. These are about the same age as the ones in the green hose right now, except for Chuck. They have also been kept with other birds. As new birds come in they get put in a different area of the property than the ones existing. Chuck, the Polish, Sebrights, new Silkies, and 10 other chicks were all in a quarantine together, and they slept together in the hutch until each out grew or left. There are pics of this motley group on here too! I think it depends on the birds that are put with them as well as the size space and age of the different breeds. I know others that let the different breeds mingle in their yard as well, so I guess that all of that is up to you. There are a few people on here who have been raising them for a long time, and are very nice about helpping with questions. I have only good things to say for example of the chicks that I got from Beth; they were very healthy, and had a high survival rate. The ones that I got from a big hatchery a few weeks before that... all Silkies died! None made it, and they were
not near as full-bodied when they arrived. The four that I got from WCA were the same age as your group, and I think she was from Wilmington? They were the best ones beside the little Polish that I brought home from there. I was pleased with her birds as well.
Good luck, and use your best judgment, I have a Sebright that came with the big hatchery order, but she is the only small breed that survived, and does get picked on when I put her in with the group. I watch for a bit, and then she runs back to me to take her back out. Some of the others squabble a bit and get over it. You can also put hardware cloth between two groups to get them used to each other if there is a big enough difference in size to let them work out getting to know each other first.
If you are going to hatch in a classroom, I would use a more hardy breed for that.. Here is a link that you can use in the class, my son learned a lot from it....
(just another resource)
http://urbanext.illinois.edu/eggs/res32-qa.html#4
Good luck again with all!