churr vs queep

churr

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

noun
  • A low vocal sound made by some birds. 

queep

verb
  • To emit a "queep" sound. 

intj
  • The sound a bird may make, similar to peep, chirp, cheep. 

  • The sound a machine may make, similar to beep. See pocketa-queep. 

noun
  • Non-flying duties, typically paperwork, that are undesirable to pilots. 

  • A rowing event, with two scullers and two sweepers per shell. 

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