I have a two Pilgrim females and one Toulouse female with a Pilgrim male. I'm in the process of selling the Toulouse female, but so far her buyer hasn't picked her up. In the meantime, they have been laying quite a few eggs. I have a bunch in the incubator, but will I be able to tell which ones are pure Pilgrims, and which ones are Pilgrim/Toulouse crosses? I would like I keep the pure birds and sell the crosses.