screech owl vs white 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. 

white owl

noun

  • the barn owl, Tyto alba. 

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