courtship vs mating

courtship

noun
  • The behaviour exhibited by an animal to attract a mate. 

  • The act of trying to solicit a favour or support from someone. 

  • The act of wooing a person to enter into a romantic relationship or marriage; hence, the period during which a couple fall in love before their marriage. 

mating

noun
  • Pairing of organisms for copulation. 

  • Sexual union; copulation. 

adj
  • Fitting into or onto a corresponding part, as a matched plug and socket. 

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