caw vs hee-haw

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. 

hee-haw

verb

  • To utter the cry of an ass or donkey. 

intj

  • The cry of an ass or donkey. 

noun

  • The cry of an ass or donkey. 

  • Nothing. 

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