rooster vs sparrow

rooster

noun
  • A male domestic chicken (Gallus gallus domesticus) or other gallinaceous bird. 

  • A powerful, prideful, or pompous person. 

  • A wild violet, when used in a children's game based on cockfighting. 

  • A bird or bat which roosts or is roosting. 

  • A man. 

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 rooster and sparrow occurred in a corpus of books? (source: Google Ngram Viewer )