raptor vs sparrow

raptor

noun
  • A bird of prey. 

  • One of the dromaeosaurs, a family of carnivorous dinosaurs having tearing claws on the hind legs. 

sparrow

noun
  • The house sparrow, Passer domesticus; a small bird with a short bill, and brown, white and gray feathers. 

  • A member of the family Passeridae, comprising small Old World songbirds. 

  • A member of the family Emberizidae, comprising small New World songbirds. 

  • Generically, any small, nondescript bird. 

  • A quick-witted, lively person. 

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