caw vs vociferate

caw

verb
  • To make the harsh cry of a crow, rook, or raven. 

intj
  • A rendering of the vocalisation of a crow or other corvid. 

noun
  • The harsh cry of a crow. 

vociferate

verb
  • To utter with a loud voice; to shout out. 

  • To cry out with vehemence 

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