I have 2 chickens that I've been trying to matriculate into my existing flock of 8 for over a month and it doesn't really seem to be working too well. I started by keeping them in a pen in the yard so the existing ladies would get used to them but not be able to hurt them. Then I move a dog crate into the coop and they've been sleeping in that. They are let out to roam the yard with the others during the day, but basically keep to themselves. The other ladies will still pick on them if they get too close. Is this normal? Do some chickens just not get readily accepted into the flock?