bleating vs keening

bleating

noun
  • A noise that bleats. 

  • Inane or plaintive chatter. 

keening

noun
  • An unpleasant wailing sound. 

  • Intense mournful wailing after a death, often at a funeral or wake 

adj
  • Sharp, shrill, especially of a sound. 

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