Hi, I don't know what thread to post this on so I hope you don't mind me asking here. We just added 3 six week old chickens to our flock of 2 four week olds. The younger ones have gone into their coop on their own at dusk since we got them at 3 weeks old. The past two nights, I have had to get the older ones and put them in the coop. Is this normal? any advice is greatly appreciated on what to do, or just keep doing what i'm doing until they get it! thank you all!