I have an 11 month old Beilefelder rooster in with 5 -11 month old Beilefelder hens, 3 - 3 yr old other hens and 2 - 2 yr old hens. I see him dance around the hens but no mounting. I have been checking eggs and find the white spots in the yolks but no target or circle shape. Is this normal for Beifelders? I thought they were slow to mature but this seems a little too slow.