I have night lights on in all of my coops. The chicks have lights on them from the day they hatch. When I move birds from coop to coop they go in pretty well and I think it is because of the lights in the coops and they are used to them. A few I may have to coax in the first night. Before I did the night lights I had to round them up a lot when they were young and put them in their coops in the evenings, but that has worked for me and may not for everyone. Originally when I put the lights in the coops I had them on timers but the timer died so now I just leave them on, most of the time I turn off the main to the coops during the day. I also have electric wire around my pens and coops. No predator will mess with electricity. I touched the wire when I forgot to turn it off and my heart skipped several beats. When I move the birds to a different coop, sometimes they won't lay for a day or so. Be patient and they will feel safe and comfortable and settle into their new home. Any change can affect them as they are creatures of habit and like a routine.