I've done the 'integration' thing already with my older pullets and they're all playing nicely now 2 months later, but in a few months I will need to do another integration to free up coop space for chicks and I'm wondering if there's a 'better' time to deal with this combination. I currently have 2 coops. One with laying pullets (25wks), one with chicks and cockerels (9-12wks). When should I move the younger pullets and cockerels in with the laying pullets? I have lots of extra details and reasonings behind why I need to combine, and when I'd like to have it done by, but I'll start with this basic question and fill in details as needed.