Mine are four weeks old and still in the house in the brooder. Still too cold at night ( PA here)-and... I don't plan on putting them in the coop with the 2 and 3 yr old hens anyway. I'm building another coop and run for them. They will 'see but not touch' the hens as their runs will be next to each other. By cold weather returning again, they should be all settled out with a new pecking order and everyone in the main coop for the winter. I have a pair of Salmon Faverolles, a year old, that were added to the flock last year. They were brooded together just those two and are so inseparable, I call them 'the twins'.They are accepted by some, but only tolerated by others and are the bottom of the pecking order. I am thinking seriously of putting them in the new coop and run with the chicks as 'mother hens'.