Are roosters aggressive when they mate? I know a lot of other animals are aggressive when breeding. We have a single comb brown leghorn rooster with lot of girls. We found one of the ladies with a scratch on the side of her face that had been bleeding. Does this sound like rooster/hen interaction, or is it more the hens making a pecking order? He rarely is aggressive with us (he has had to be put in his place a couple of times though). Thanks for any input.