llanero vs puncher

llanero

noun
  • A plainsman; a South American cattle-herder or cowboy, especially in Venezuela and Colombia. 

puncher

noun
  • A cowpuncher; a cowboy. 

  • A person who punches (in a specified manner). 

  • A device for punching something, such as tickets. 

  • A person who keys data into a computer system. 

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