I have chicks at different ages. 3 are 6 weeks going on 7 weeks and the rest are 5 weeks going on 6 weeks. If I move the older chicks to the coop (one is a cockerel) when the younger chicks move out in the next week or two will they follow the older chicks into the coop? Or do you have to get them used to it as well? Or should I wait and move them all together?