I put mine (brooder raised) in a separate cage at 3 weeks old, let them loose with the flock at 4-5 weeks old (provided the weather is good). When I had a broody, I didn't separate and she usually rejoined the flock at 3 days old.At what age do you all put your chicks in with your established flocks? For some reason I think I read 8 weeks was a good time to do it, but there are so many pages on the thread to look thru. My 7 chicks are 6-7 weeks old (6 are brooder raised, one is broody raised but momma hen is weaning her- she goes out with the flock about half the day and roosts with the flock). A few are starting to really try to get out of their grow out area of the coop to get up on the big girls roost at night... 2 are quite obsessed with trying to escape and about gave me a heart attack tonight when they succeeded and I couldn't find them with the rest of the chicks! They were up on the roosts but being pecked at until they found a good spot. Secondly- what do you feed when they are all together? Can I just mix chick and layer feed together half and half (they have oyster/eggshells and grit offered at all times) or do I have to switch to an all flock type feed?