Why Geese Fly in Formation

Why Geese fly in formation. Two engineers calibrated in a wind tunnel why geese fly in formation. Each goose, flapping its wings, creates an uplift for the goose that follows. The whole flock gains 71% greater flying range than if they journeyed alone. That’s why the leader of the V formation falls back periodically to let another leader take the point, and why the rest stay in line. (Source unknown, Lou Nicholes - Missionary/Author)