mare's nest vs sitch

mare's nest

noun
  • A confused or complicated situation; a muddle. 

  • A great discovery which turns out to be illusory; a hoax. 

sitch

noun
  • Situation. 

  • A brook; ditch; gutter; drain; ravine. 

How often have the words mare's nest and sitch occurred in a corpus of books? (source: Google Ngram Viewer )