chimpanzee vs drongo

chimpanzee

noun
  • Pan troglodytes, a species of great ape in the genus Pan, native to Africa, and believed by biologists to be the closest extant relative to humans along with the bonobo. 

  • A member of the genus Pan, including the bonobo which is also known as the pygmy chimpanzee. 

drongo

noun
  • Any bird of the family Dicruridae. 

  • A fool, an idiot, a stupid fellow. 

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