fish eagle vs white-tailed sea eagle

fish eagle

noun
  • The osprey (Pandion haliaetus). 

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

white-tailed sea eagle

noun
  • the white-tailed eagle. 

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