Pirate vs ou

Pirate

noun
  • someone connected with Bristol Rovers Football Club, as a fan, player, coach etc. 

  • someone connected with any of a number of sports teams known as the Pirates, as a fan, player, coach etc. 

ou

noun
  • A probably extinct species of Hawaiian honeycreeper, Psittirostra psittacea. 

  • A fellow, guy, bloke. 

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