churr vs mewing

churr

noun
  • A low vocal sound made by some birds. 

verb
  • To make the low vocal sound of some birds. 

mewing

noun
  • The act of producing a mew sound. 

  • The act of one who mews (in any sense). 

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