owlet vs owling

owlet

noun
  • A young owl; owling. 

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

  • An owlet moth. 

owling

noun
  • A small, juvenile, or baby owl; owlet. 

  • The smuggling of sheep or wool out of England. 

  • Birding, specifically to catch owls. 

  • A variation on planking in which a person is photographed or filmed squatting down in an unusual location. 

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