I have a small flock of four chickens, one being a rooster. Two of the females are boisterous. They will likely fight as they have before in grown chicken introductions. This chick is very docile and small and will definitely be killed if I just toss her in. At what point, and to which method, should I introduce them? Is it better for her to be young, as she now is, or wait until she is grown? They have never met before, she is not one of their babies. She was found in a random location alone and was brought home and cleaned up. She is so sweet and gentle and clingy. She would definitely be easily attacked as she is not a fighter. Thanks!