Beautiful coop. I also have roosts just like yours. I just moved my flock into our new coop two weeks ago. I too was worried about their adjusting because half of the flock is very old and has been in their previous coop most of their lives. The new girls I knew would be fine.
The first night I just plucked each one from the old coop and set them on a roost in the new coop. There was some confusion and scuffling around. I had a light on out in the run so there was a little bit of light in the coop so they could see what they were doing. After a few minutes, they all settled in. I turned the light off and went into the house.
The next morning they came out and were very curious and checked everything out and found their food and water and explored the new run. From that point on it has been smooth sailing.
I also have some young hens just starting to lay and so far of the 3 that have started laying, 2 laid in the nest boxes right away. The third one is laying in the dirt bath, so I hope she gets the message soon and goes in the nest box. I am going to try to catch her and put her in there but I can't sit and watch for a chicken to lay an egg all day. LOL!!! But overall, they have had no problem adjusting and now it is as if they have been in the new coop forever. Now I have to teach them how to use their new grandpa's feeders. That I will save for after the holidays. Enough changes for the time being.
