How do you cross-breed racing pigeons? For example, I have two pairs (Pair A & Pair B), both pairs raised the first clutch of young birds, they could have the 2nd clutch of eggs laid when their 1st batch is getting older.. If you plan to cross the cock of pair A to Hen of pair B and cross the hen of pair A to cock of pair B, assuming that you already fostered the 2nd clutches of their eggs to other foster pairs, what could be the process? Thanks!!!