Hello! I am going to go pick up a 10 week old oliver egger chick tomorrow. The mommy is a black Americana and the daddy is a blue copper maran rooster. The gender of the chicks is unknown and I am not allowed to have roosters per my city zoning. Can anyone give me any tips on what to look for to increase my odds of hopefully ending up with a pullet. Any help would be greatly appreciated. I really would LOVE those pretty eggs. Thank you!!