I have 7 -8 week old chicks breees are large fowl, polish, silkie and a runt who looks 3 weeks old. I put a little more than half the chicks with the 1 year old hens in an escape pen. So far so good, a peck here and there and chatter. Should I let them be to stay the night ? Or separate into there chick pen and Put them back in tomorrow ? I have 3 chicks still separated from there chick group. One is a polish who can’t see much (will clip her feathers) and the silkie and stunted specked Sussex. Not sure if I should keep them separated or introduce ? The speckle Sussex is really tiny!! She looks 3 weeks and the silkie is larger than her. In the past I had two coops, so I was able to grow out. At this moment I don’t have that advantage.