scops owl vs white owl

scops owl

noun
  • Any owl of the Old World genus Otus. 

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

white owl

noun
  • the barn owl, Tyto alba. 

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