owl vs western barn owl

owl

noun
  • An owl pigeon. 

  • A person seen as having owl-like characteristics, especially appearing wise or serious, or being nocturnally active. 

  • Any of various birds of prey of the order Strigiformes that are primarily nocturnal and have forward-looking, binocular vision, limited eye movement, and good hearing. 

  • Any of various nymphalid butterflies, especially in the genus Caligo, having large eyespots on the wings. 

  • A politician with moderate views that are neither hawkish nor dovish. 

western barn owl

noun
  • A barn owl of the subspecies Tyto alba alba, endemic to western Eurasia and most of Africa. 

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