moorhen vs ocelot

moorhen

noun
  • A female red grouse, Lagopus lagopus scotica. 

  • Any of various medium-sized water birds of the genus Gallinula, of the rail family, that feed in open water margins. 

ocelot

noun
  • An American feline carnivore (Leopardus pardalis, syn. Felis pardalis) covered with blackish ocellated spots and blotches which are variously arranged. 

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