We have ten chicks now 2.5 months old. A friend has a 1 yr old leghorn hen who he can’t keep any longer. We wouldn’t mind taking her in but I’m not sure how to integrate an older hen. We don’t own a separate cage/coop to put her in initially. Our chicks free range most of the day. Could we just start the morning with free range together and hope they get along in the coop at night?