I have 3 young hens that have not started laying yet but have been with my Royal Palm tom that has been mating with them. After letting them out of the pen this last weekend, i heard a comotion and 4 of the local boys (wild Rio Grande) had come calling. They stayed most of the day and I saw them mate with all of the girls. What I'm wondering is how long until the hens lay might there be fertile eggs from these matings?