I put mine out in a protected area, protected both from other chickens and from the elements if they needed it and left them there for a few days. When released they simply 'got along.' I had to stuff them into the coop after dark as they would sleep outside on the ground but only had to do that twice before they understood that the coop was the new home. They still get chase now and then but nothing serious. Sorry yours are getting pestered! It's never easy introducing new chickens.