Okay so I just discovered that I have a second rooster. All my birds are roughly 8 weeks old, and I have a total of 14. Some weeks back I discovered I had a barred rock cockerel. I decided to keep it since I live in an area where I can keep extra roosters. Well tonight I discovered rooster #2 and I'm unsure how they will work together. My second rooster is a Polish breed, considerably smaller than my barred rock rooster. Can I keep both roosters or will they just fight and kill each other? Part 2: If I can only keep one rooster which should I keep? How do polish cross-breed with other non-polish birds and how do barred rock cross? I plan on hatching eggs some day and I'd like to keep whichever cockerel will produce the neatest offspring.