hello everybody. i have like 30 standard hens and 6 bantam roosters and 15 bantam hens and whenever i want to hatch some of my standards eggs they aren't fertile. my banties are to small to do the job. ive been trying for 2 years not just to make sure they wherent molting or since its winter but there not doing it. so my question is what kind of standard rooster would be good for light brahma hens, white plymouth rock hens, barred plymouth rock hens, mutt hens, BSL hen, and RIR hen.??? any help woulld be great.