stray dog vs tyke

stray dog

noun
  • An ownerless dog, a roaming wild or half-wild dog. 

tyke

noun
  • A mongrel dog. 

  • A Roman Catholic 

  • An initiation level of sports competition for young children 

  • A small child, especially a cheeky or mischievous one 

  • A person from Yorkshire; a Yorkshireman or Yorkshirewoman 

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