bird dog vs servant

bird dog

noun
  • A tout. 

  • A dog, especially a pointer, used in shooting to retrieve the dead birds. 

  • A person who seeks out real estate investment opportunities in exchange for a fee. 

  • A person who tries to steal someone else's romantic partner 

  • A radar detector (for detecting police speed traps). 

  • A hyperextension exercise performed lying on the knees, with one arm and the opposite leg lifted. 

verb
  • A multiservice tactical brevity code requesting configuration of sensors. 

  • To seek out. 

  • To watch closely. 

servant

noun
  • A person who dedicates themselves to God. 

  • A person of low condition or spirit. 

  • One who serves another, providing help in some manner. 

  • One who is hired to perform regular household or other duties, and receives compensation. As opposed to a slave. 

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