Moreover, by spacing themselves apart properly during the formation of a V while flying, the birds can optimize the reduction of drag experienced by every bird in the formation. However, the formation V does not benefit all birds equally, instead the bird in the lead position works the hardest. After all, who said being a leader is child's play! The next point will certainly interest you. When the bird at the lead position tires out, it will fall further back into one of the lines of V, and will be replaced by another bird from further back.