doodlebug vs wood pigeon

doodlebug

noun
  • A woodlouse. 

  • An automobile converted into a cheap tractor for a small farm during the Second World War. 

  • Someone who draws constantly. 

  • An idiot. 

  • A slackard or time-waster. 

  • The V-1 flying bomb. 

  • An antlion larva (Myrmeleontidae). 

  • A divining rod or similarly intended device. 

  • A term of endearment. 

  • A cockchafer (genus Melolontha). 

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 doodlebug and wood pigeon occurred in a corpus of books? (source: Google Ngram Viewer )