gull vs turtle dove

gull

noun
  • Any of various pierid butterflies of the genus Cepora. 

  • A seabird of the genus Larus or of the family Laridae. 

  • One easily cheated; a dupe. 

  • A cheating trick; a fraud. 

verb
  • To trick and defraud. 

  • To deceive or cheat. 

  • To mislead. 

turtle dove

noun
  • Any of several (species of) birds, called by this traditional name, mainly in the genus Streptopelia, of the family Columbidae (doves and pigeons, which also included the extinct passenger pigeon, dodo, and solitaire). 

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