We have 4 pullets who will be 10 weeks old this weekend.. And hoping to introduce them to our 2 hens soon. We still keep them separated but they have seen each other quite a few times. I attached a picture of the set up how they can see each other. The older two we let roam in the yard, so the first few times they saw the chicks through the cage they really couldn’t care less. The other day I put the screen door in the middle so that the big girls could walk out from the run and be up close next to the pullets. They peck hard and jump chest first at the pullets through the screen which could be completely normal but also makes me nervous as this will be our first time introducing chickens to one another. When did you let them actually be together with nothing blocking between? I’ve read a lot but hearing other peoples experiences helps.