I recieved 4 RIR hens form a friend of mine. Well i decided to intergrate them. Problem is the other hens would attack the whenever they tried to eat or drink and if my rooster would try to mate them. I moved over all them mean hens and left the new ones in the pen with the rooster. he tries to call them to eat and made a nest for them but they wont come off the roost. How long do you think it will take them to adjust?