WHY DO BIRDS FLY IN "V" FORMATION?

A lot of birds species like the geese, swans, ducks and pelicans, take a "V" formation when they exceed one kilometer in height. When they shake their wings, each bird produce an updraft wich help the bird that is coming behind to glide. So, all get benefit from the bird that goes ahead, except, the first. the first bird is the most experienced of all and knows the way.

When the leader is tired, it go to the final formation, and other take its place. The birds that are behind, squawk (they produce their own sound) to encourage the others that are front to keep the speed.

When a bird is injured, ill or tired, others get up of the formation and accompanying to help and protect. They stay with it until it is able to fly again and reach their flock.

MARIA ALEJANDRA ABELLO MOZO.