"Eagles live 70 years, but at 40 they have to make a difficult decision, their talons become so long and flexible that they cannot hold the prey they feed on. The long and sharp beak curves too far on the chest and no longer it is useful Their wings are old and heavy, according to the large size of their feathers, and then flight becomes very difficult for them. It has two alternatives: abandon itself and die, or face a painful process of renewal, which consists of flying to a nest in the mountains near a wall, because it is safe. The eagle starts hitting the wall with its beak with great force until it is pulled. Then it will wait for a new beak to grow, with which it will detach its old nails one by one. When the new claws begin to hatch, it will begin to pull out its worn feathers. And after all those long and painful five months of wounds, scars and growth, he manages to make his famous flight of renewal, rebirth and celebration to live another thirty years ... ...