dotterel vs golden plover

dotterel

noun
  • A small brown-and-black bird, Charadrius morinellus, of the plover family. 

  • A gullible fool, especially an elderly person with impaired faculties. 

  • Any of various small birds of Australasia thought to resemble the Eurasian dotterel. 

adj
  • decayed 

golden plover

noun
  • A migratory plover of the genus Pluvialis, having black underparts and a golden back in the breeding season, now regarded as the three species P. apricaria of Europe, P. fulva of the Pacific coasts, and P. dominica of North America. 

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