I am trying to integrate a chicken into my 2-3 year flock. I have some "Browns" and a friend gave me a black cochin that is about 5months. I put the chicken in the established flocks coop at night and they give her a heck of a time during the day. I have been locking them (the browns) out of the run so she can get some fresh air and peace...I don't know what else to do. Soon the weather will change and they will all have to be in the coop. Does anyone have any ideas for me?