Hello, I have a black silkie roo that is coming of age. I want to put all the chickens together in the pen to see if they get along. Will a bantam roo stick to trying to mate with only bantams or would he try with the big girls? I keep the 3 big girls for their big eggs, don't want him to make them fertile. I have 2 silkie pullets that are still young, not laying yet (soon I hope), and they are not missing any feathers on their backs yet, so I don't think he's tried with them yet. Thanks..