The term 'FLOCK'S FLYING FORMATION' is a reference to the way that birds fly in a V-shaped formation. This formation is known as a 'VEE' and is used by many species of birds, including geese, ducks, and other waterfowl. The V-shaped formation allows the birds to conserve energy while flying long distances, as the birds can take advantage of the air currents created by the wings of the bird in front of them.