I've got 5 seven-week old chicks that are ready to move outside and into the coop with my other 5 ten to twelve week old chicks. The size difference is quite considerable. They've been introduced out in the yard, but hang out in their separate flocks. It's time to move the smaller chicks outside, but I don't know how to introduce them into the coop at night with the other chickens. Thanks for your help!