birdcage vs cubbyhole

birdcage

noun
  • A cage to keep pet or zoological specimen birds in. 

  • A game of chance played with dice; chuck-a-luck. 

cubbyhole

noun
  • A small compartment; a pigeonhole 

  • A glove compartment 

  • A small, snug room which may be used as a place of privacy and safety by children 

verb
  • To restrict, limit or narrowly define; to pigeonhole. 

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