I am about to introduce 2 different sets of pullets together they are 14 weeks and 8 weeks. I didn't plan on bringing them together for another few weeks well today they were all free ranging in the yard at dusk. First the little girls went in to perch in the big coop ( they are still in a makeshift brooder) then the big girls went in and perched as well, SO now they are all on the perch together. I didn't want break them up so I thought maybe this was nature taking it's course. I put the shades on the coop windows so it will still be dark i there until I get up tomorrow. I hope everything stays peaceful. It sure would be great if this works tonight, I'm super nervous!!