The eagle had been feeding on a deer carcass when it was shot, police said.
On Saturday, officials found an eagle suffering from gun shot wounds near a home in Deakins Lane in Darnestown. An X-ray showed that it had been shot by bird shot. The bird later died of its injuries.
Bald eagles are no longer protected as an endangered species, but it is illegal to shoot eagles without a permit from the U.S. Department of the Interior.
If convicted, the maximum fine is of $5,000 and up to one year in prison.