owlet vs screech owl

owlet

noun
  • A young owl; owling. 

  • One of a species of small owls, such as Athene noctua. 

  • An owlet moth. 

screech owl

noun
  • Any New World owl of genus Megascops. 

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

  • The mistle thrush (Turdus viscivorus). 

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