owlet vs scops owl

owlet

noun
  • A young owl; owling. 

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

  • An owlet moth. 

scops owl

noun
  • Any owl of the Old World genus Otus. 

  • A small European migratory owl, Otus scops, that winters in sub-Saharran Africa. 

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