galah vs great ape

galah

noun
  • A pink and grey species of cockatoo, Eolophus roseicapilla, native to Australia. 

  • A fool, an idiot. 

great ape

noun
  • Any member of the taxonomic family Hominidae, including gorilla, orangutan, chimpanzee, excluding Homo. 

  • Any member of the taxonomic family Hominidae, including Homo, and also many similar extinct species. 

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