Our 10 black star chicks are now permanently in their big girl chicken tractor! They had sooooo outgrown their brooder box. We had been letting take day trips to the coop for the past several weeks, so they knew what was in store. I always felt bad putting them back in the box, but it was home to them and they did not care. I hope all goes well for them tonight. I know that I will be anxious until morning.