fish eagle vs sea eagle

fish eagle

noun
  • Any of several species of birds of prey that feed on fish in the genus Haliaeetus (syn. Ichthyophaga). 

  • The osprey (Pandion haliaetus). 

sea eagle

noun
  • A genus of eagles (genus Haliaeetus). 

  • An eagle with a distinctive white tail; specifically, the white-tailed eagle (Haliaeetus albicilla). 

How often have the words fish eagle and sea eagle occurred in a corpus of books? (source: Google Ngram Viewer )