Why do birds fly together in a perfect V shape?
It is important to first understand how geese’s vision works. Geese eyes are set right in the side of their head which gives the benefit of having all-rounded vision; however, it does leave a blank spot at the front and the rear. If geese, like most birds, travel together in a scattered flock with other birds flying behind, and beside them, they would have a hard time following the bird in front of them. Their vision limits them the extra space in the front and rear; thus, they would have to constantly move their head in order to keep the other bird’s flying range and distance in mind. It would then have to resort to asymmetrical flapping to maintain a straight course which will waster their energy, and reduce their flying efficiency. It would be chaos! Not only that, geese flying scattered will all have to fly in different heights; otherwise, they would interfere with each other’s flapping. However, with the V shape, they are not scattered everywhere. In fact, they are very well organ
