The European Sea Eagle is commonly known by several synonyms. The most common ones include White-tailed Eagle, Sea Eagle, and Erne. The white-tailed eagle is used to describe the bird's physical appearance, where it has a white tail. Sea Eagle depicts the bird's habitat, where it lives near coastal areas and feeds on fish. Erne is an old English word for the bird of prey, and it is still commonly used in Scotland. Other synonyms include the Continental Sea Eagle, Eurasian Sea Eagle, and the Northern Sea Eagle. All these synonyms describe the same bird species, and they are used interchangeably depending on the geographical location and language preference.