I have a bunch of free range chickens in a large coop. There are 22 in the coop. Also there are 7 chickens and 6 pheasants in a large wooden box inside a barn. There is a screen over the top to trap the escapees who like to jump the top. I'm going to move them into the coop with the others soon, but don't know how to introduce them.
Last time I introduced chicks to the coop, I put the box into the coop, sawed off one side of the box, and the chicks came out slowly. I locked the door to outside for the first week or so, but if I did that now, the old chickens would be locked out. What do I do?