Sea eagles were once a common sight in England
Sea eagles could be reintroduced to the Suffolk coast after a study concluded the area would provide the best habitat for the birds in eastern England.
Scientists looked at the Humber to the Thames Estuary in a three-year study for Natural England and the RSPB.
They favour the Suffolk coast because it is surrounded by wetlands, from the The Wash to the Thames Estuary.
Any reintroduction plans would include a public consultation, Natural England and the RSPB said.
The sea eagle, also known as the white-tailed eagle, was persecuted to extinction in the early 19th Century in England and by the early 20th Century was also extinct in Scotland.
The bird has been re-established on the west coast of Scotland after two earlier releases and a third series of releases is under way in eastern Scotland.
Mark Avery, the RSPB's director of conservation, said: "These birds belong to lowland England as surely as they belong to the sea cliffs of Scotland.
"Man is the reason they are missing and it is for us to put that right."
Natural England's chief scientist Tom Tew said: "Our analysis of the Suffolk coast has produced encouraging results in terms of identifying potential sites that could form the base for a future re-introduction.
"The task now is to ensure an open and informed debate about whether, and how, to move forward."
Natural England and the RSPB said they will look to canvas the views of local landowners, livestock farmers, conservation organisations, experts and the general public.
A series of opinion surveys will be carried out in Suffolk to "gauge initial local reaction", they added.
Fierce criticism from farmers and landowners has led to delays to reintroduction plans in Norfolk, and the birds have been blamed for lamb deaths in Scotland.