I am unsure about having roosters. I have 14 chickens, 4 Barred Rock, 5 Red Sex-linked and 5 RIR. I want to have some eggs fertilized and raise some chicks to sell. But, I don't know where to get a mature rooster and I'm not sure how many/what breed to get. I have never had one before so I have no idea how to care for them and how they react towards people and my hens. So if you have any answers to my questions that would be great! Let me know how the whole raising roosters work!