chick vs true sparrow

chick

noun
  • A young bird. 

  • A screen or blind made of finely slit bamboo and twine, hung in doorways or windows. 

  • A young, typically attractive, woman or teenage girl. 

  • A young chicken. 

  • A friendly fighter aircraft. 

verb
  • To compress the lips and then separate them quickly, resulting in a percussive noise. 

true sparrow

noun
  • Any Old World sparrow, especially one of the genus Passer. 

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