Why do birds fly a wedge?

The Bird Wedge is a frequent image among poets and writers. Firstly, it's beautiful, secondly, it breaks through to philosophical reflections. But why the birds at the speed of 50 to 90 km / h for many days in a row to stare at the back of a flying comrade? This question will not be answered by the authors with subtle mental organization. But ornithologists know the answer.

The wedge construction procedure ensures energy saving and optimal teamwork. At the head of the wedge (or semiclamp, as far as the personal bird's crew is concerned) is the leader, the strongest and most enduring. The swing of his wings creates powerful air flows, providing additional air flows to the rear. The second link makes it easier for the third and so on the list.

The birds flying from behind are literally floating in the air waves that created the flying ones ahead. That's why inexperienced young people and those who are not out of health are sent to the end of the line.

When the leader gets tired, he is rebuilt into the tail of the wedge, to rest, and his place takes the next bird. That's how everyone changes until they get to their destination.

And to be more specific, the review of the participants in the migration flash mob is not limited to operatives' asses. Each bird flies a little away from the one in front. So everyone can see the leader's maneuvers, and comrades, and landscapes.