great horned owl vs owlet

great horned owl

noun
  • A large owl, Bubo virginianus, resident in North America, having tufts on its ears. 

owlet

noun
  • A young owl; owling. 

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

  • An owlet moth. 

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