pettifogger vs squawker

pettifogger

noun
  • Someone who quibbles over trivia, and raises petty, annoying objections and sophistry. 

  • An unscrupulous or unethical lawyer, especially one of lesser skill. 

squawker

noun
  • A person who complains or protests noisily. 

  • An informant; a stool pigeon. 

  • A loudspeaker used for frequencies intermediate between those of a woofer and a tweeter. 

  • Something that squawks. 

  • The radio used in police vehicles to keep in contact with headquarters. 

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