oyster vs wood pigeon

oyster

noun
  • The delicate morsel of dark meat contained in a small cavity of the bone on each side of the lower part of the back of a fowl. 

  • A person who keeps secrets. 

  • A shoplifter. 

  • A pale beige color tinted with grey or pink, like that of an oyster. 

  • Any of certain marine bivalve mollusks, especially those of the family Ostreidae (the true oysters), usually found adhering to rocks or other fixed objects in shallow water along the seacoasts, or in brackish water in the mouth of rivers. 

adj
  • Of a pale beige colour tinted with grey or pink, like that of an oyster. 

verb
  • To fish for oysters. 

wood pigeon

noun
  • The common wood pigeon, an Old World species of pigeon, Columba palumbus. 

  • A very large (up to 650 grams) species of pigeon native to New Zealand, Hemiphaga novaeseelandiae. 

  • Any of several related species of pigeon in the genus Columba. 

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