stork vs white stork

stork

noun
  • A large wading bird with long legs and a long beak of the family Ciconiidae. 

  • The seventeenth Lenormand card. 

  • The mythical bringer of babies to families, or good news. 

white stork

noun
  • A large wading bird, Ciconia ciconia, that winters in Africa and breeds in Europe; in European folklore, it delivers babies. 

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