When he reaches the age of about 40, the eagle’s claws become very long and bent, and can no longer allow them to swallow the prey. And his beak becomes too long and bent to allow them to eat. Feathers on the wings and chest become very dense and heavy, making the flight much more difficult.
Then he flies to his nest on the top of the cliff and begins to strike violently with his beak in the rock until the beak falls … Then he waits to grow his beak again, with which he plucks his claws.