I have 3 sets of chickens. 4 RIR hens ( 1 year old). 6 BR pullets ( 5months old) and 3 banties, unknown breed, 2boys and one girl ( 3 months old)..... I have been working on integration for over 2 months. We started each set in their own separate pens and coops but only separated by a fence. They see each other and each will reach their heads through to one another sides and eat fairly close together, I open the fences during the day so everyone can roam together. The 2 older sets are let out to free range anywhere they choose to go once I get my eggs each day. The banties can go as well but choose to stay close to their coop,,,, My question is this...should they get along and be able to share a coop by now, because they do not get along and can't seem to share a coop. The RIRs are terrible to all the others. And the BRs are terrible to the banties but there have never been any injuries or even any serious bites. A lot of chasing and pecking and keeping one another from food. The RIRs seem to just get bored and go look for a BRto chase off. They even chase away squirrels and blue jays and what not....( each set gets along great with their own hatch mates) I feel like at least the 2 older sets should be able to share a coop by now. If what I have is acceptable integration then I will quit worrying. I am fine with their setups and having 3 coops is not an issue with me but I want them to all feel safe with one another. I FEEL like I have friendly interactive chickens, at least with me they are...but they just seem so bratty and aggressive to all our animals. I don't want to have the wrong expectations on what should be happening because I feel it keeps me too involved in things I shouldn't be involved in.