I don't know the official status of these creatures, but we have several more than we really need around here. What is becoming endangered here is laying hens.
For some years now we have been watching bald eagles fly over the farm as part of their commute. Apparently they nest in the thick woods to the south of us and fish in the lakes to our north. We enjoyed seeing them and until recently they never caused us a problem.
We have occasionally lost chickens to hawks. We found that hawks can be deterred by setting up strings with old computer CD's hanging from them in the chicken yard. This is the same thing your grandmother used to do when she set up pie plates to keep the birds out of her vegetable garden. The plates (or CD's) reflect sunlight at odd angles and tend to ward off birds including hawks.
Eagles are much braver than hawks I guess. They ignore the CD's and sometimes even knock them down when they drop in for a meal. An adult hen is too big for an eagle to carry off so they just eat about the top third of the chicken and leave the rest.
When hawks prey on the chickens they perch nearby for quite some time, apparently to make sure there is no danger. The roosters usually see them and raise an alarm causing all the chickens to run into their roosting shelter. The eagles do something similar at least some of the time, but from much farther away. This goes unnoticed by the roosters.
My bride tried to look up methods of scaring off eagles on the internet. Everything she found indicates that the only way to keep eagles from eating your chickens once they start is to run out of chickens.
It is illegal to kill eagles of course, which we knew. I would not do so even if it was mandatory. According to one source a federal permit is required to "harass" an eagle.
Just so you know, the loud noises, clapping, and gunfire you hear around the farm are part of our program to build up the self esteem of the raptor population and encourage them to renew their interest in fishing.
A permit? Good lord, we have some real intellectual giants working for the Feds don't we.