This is the first time I've ever owned chickens and just recently I've moved them outside. We have one Rhode Island Red rooster, six silkies and four black australorps. Within in the first few nights of them going outside they tried all sleeping on the ground smushed into a corner. I wasn't going to have that so started putting them on the roost bar. I've noticed that some of them want to be with specific chickens next to them and even some who want to be by themselves. Will this have an affect on if they're are "closer" to some more then others? Will they always want to roost next to them? And will they stay together when they're outside the coop in their run?