Who preys on an eagle?

us, humans
The predator of the eagle is humans./ Eagles don't have "natural" predators, except for as with any type of species they are vulnerable in their infancy, meaning before hatching and leaving the nest. Crows and other "thieving" birds can influence the eagle population by stealing the eggs or attacking the live hatchlings while the parents are away gathering. Don't blame humans as a whole species for being a predator to eagles, just like with any other walk of life, some bad humans can make the rest of us look bad