monkey-faced owl vs screech owl

monkey-faced owl

noun
  • A barn owl, Tyto alba. 

screech owl

noun
  • A common barn owl, of species Tyto alba, found almost worldwide. 

  • The mistle thrush (Turdus viscivorus). 

  • Any New World owl of genus Megascops. 

How often have the words monkey-faced owl and screech owl occurred in a corpus of books? (source: Google Ngram Viewer )