Raccoons and Great Horned owls are a great threat to a Bald Eagles nest. Smaller birds could be considered predators as well.
harpy eagles
humans
Mountain lions, alligators, and crocodiles prey on bald eagles.
Crocodiles and alligators eat eagles.
wolves,eagles,and bears,etc
eagles have no natural predator's, but eagles have been know to attack and kill other eagles depending on circumstances and species.
Avian predators (eagles etc.)
Predator prey
Eagles eat whooper swans.
Eagles have the sharpest eyesight of any animal.
Snakes Hawks Eagles Cats
Humans (especially hunters) kill bald eagles by hunting,(shooting) and destruction in their environment.