My chickens are almost 6 months old. I have a rooster that has started attacking my pullet on a regular basis. He jumps on top of her and won't let her up. I would've swore that he was trying to mate with her, but he was standing in the wrong direction. My girls have not started laying eggs yet. Is he trying to mate or just showing dominance? Is she getting ready to lay eggs? This is my first time with chicks so this is all new to me. Thanks for any input.