provoke vs ruffle some feathers

provoke

verb
  • To cause someone to become annoyed or angry. 

  • To bring about a reaction. 

ruffle some feathers

verb
  • To cause a disturbance; to arouse resentment, anger, or concern. 

How often have the words provoke and ruffle some feathers occurred in a corpus of books? (source: Google Ngram Viewer )