I have an Old English Game Bantam that has been "having a field day" with several of my brown egg layers hens. He is the only rooster with them. He is definitely breeding with them.... or trying to. We have only found one fertilized egg out of many. I am wondering if it was a fluke that they "got the job done", or is it normal for a small rooster to be able to breed with a big hen. It could be that my egg hatching problems are with the incubator and not in the fertility of the eggs. Anyone out there have experience breeding a bantam rooster with a big hen?