I'm lucky, I have lots of room to separate and introduce new chicks. Each of us has to make the decisions that are best for our situations, chickens are definitely not a one size fits all proposition!yeah I'm just worried about the space to "get away" i wanted to open the new run by now but the hard wire cloth i ordered isn't here yet despite me putting a two-day rush order on itthe older chicks can't get though the chicken wire but the youngest chicks can and i don't want to lose any more baby's today
but i do have odds and ends pieces of hard wire cloth left so maybe i can out something together with that because my grams sick rooster is taking up the old dog crate with the run i was going to use for the baby's after i broke my rooster of his mean streak.![]()
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I've also used the plastic garden fencing as a temporary solution in the past. It is readily available, but it isn't very predator proof. I only use it where I know I have a place to put the chicks away at night and I usually only use it for a few weeks just until they are large enough to not pop through the regular fencing. But, I raise brahmas and by 8 weeks old, they are huge!! If I tried to wait until 8 weeks to integrate them into the flock, I don't think I'd have enough space for them in a brooder. My 12 week olds are about 24 inches tall at the top of their heads, my 8 week olds are as large as a Barred Rock hen. My 5 week olds are probably the size of a pigeon. So, there is no way that I could leave them in a brooder beyond the 3-4 week mark, I'd have them crammed in there like production chickens at an egg factory!

I've actually built a separate apartment in my coop that I use for chick integration, for broodies with their clutches (before I lost mine to dogs this spring), injured birds or anything else that I need to separate for anything. My husband thought that I was wasting my time when I built it, but boy, it sure has come in handy. It is 3x10, so it has enough room for quite a few birds. I'm getting ready to build another one to start separating out my breeding cocks when they are old enough to breed. I've read that once you take them out of the boy flock for breeding, it is difficult to put them back in with the other boys. So, if things get a little crazy, I'll put the breeders into their own apartments until I have enough hens built back into my flock to be able to keep a male with them all of the time.