So, my second batch of chickens that I got from the hatchery appears to have, for sure 3 roosters & possibly one more we aren't sure about. My older hens (25 weeks old) are being bombarded by these 18 week old roosters. I don't want to harm the roosters but I'm not sure what my options are. I have 3-4 roosters & 9 hens, someone help!!!