screech owl vs tawny owl

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. 

tawny owl

noun
  • A species of strigid owl, Strix aluco, of Europe, western Asia, and the Middle East. 

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