I introduced a young rooster to my flock last night. When I went out this morning none of my girls would come out of the coop(very unusual). I went in to find that he wouldn't let them out the door. I also had one hens face that had been scratched up pretty bad and another hen laying in the corner. The hen in the corner wouldn't get up and her face was covered in blood and blood is coming from out of her nose. Do you guys think this new guy is doing this? I have him separated now.