churr vs peal

churr

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

noun
  • A low vocal sound made by some birds. 

peal

verb
  • To sound with a peal or peals. 

  • To resound; to echo. 

  • To assail with noise. 

  • To utter or sound loudly. 

noun
  • The changes rung on a set of bells; in the strict sense a full peal of at least 5040 changes. 

  • A set of bells tuned to each other according to the diatonic scale. 

  • A loud sound, or a succession of loud sounds, as of bells, thunder, cannon, shouts, laughter, of a multitude, etc. 

  • A small salmon; a grilse; a sewin. 

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