Ok .. so we've caught some kind of chicken fever. We have 6 about 5-6 weeks old that are going to moving outside VERY soon. We have a double lot here in Southeast Missouri and according to town rules we can have six per lot. So I figure we can have 12. So when we move these outside I was thinking of getting 2-3 more. How would I transition newbies to the older ones when they are big enough to go outside? Will this be an issue?