I have a flock of 14 girls & a few young roos that free range most of the day. (2 of those roos soon to be gone). So far, not a single issue. Id like to give the bantam roo that I have a few ladies more his own size. I'M assuming the larger roo will attempt to mate them too? None of them are aggressive, some squabbles but not a single injury. Maybe this is dumb. Can the larger roos hurt the bantams by mating? Would eggs be bigger than normal?