I guess your question has never really been answered. I would guess that since they are establishing the pecking order straight away, the newbies will just learn their place faster. Instead of being indifferent forever they will get their point across and it will be done.I thought my Easter Eggers were so sweet until today! I have 3 chicks that have been growing out in a little pen inside the run. They are 7 weeks old. Today I let them out in the run to see what happened. Everyone left them alone except for the EEs!! The ran around pecking at them, I was so surprised! Will it take a long time to integrate?
It is always surprising who becomes bossy under different situations. My lowest ranking hen lets the newbies know she is boss when it comes to food and stays with the other big girls all day but at night roosts with the new kids.