Ok I have a question about all this. My chickens are completely free range, no run. Their door opens to the world in the morning (about 2-3 hours after the sun rise) and they go where they want. The door closes after dark. I have woods, pasture, and thick brush areas near-by the coop - and chickens mostly like to hang in the woods and thick brush. This is the way I've been keeping my laying flock for 8 years now. When I introduce new chicks to the coop, I just put them into the coop one day. Usually around 2-4 weeks old depending on the weather. Sometimes I put an excluder with some feed and water and a tiny bit of space to be in if they need it. They almost never use the excluder and I've never had a problem with this method. Of course sometimes tensions boil and the older chickens occasionally chase the younger chicks around briefly, but I've never had one injured or killed. This business of keeping the chicks in a separate pen visible but no direct access seems like a lot of work. Am I able to avoid this process of introduction because I'm free ranging? I don't quite get it. Am I just getting lucky?