misfit vs rara avis

misfit

noun
  • A badly adjusted person; someone unsuitable or set apart because of their habits, behaviour etc. 

  • She was very unhappy in Iraq and a misfit in the Army. 

  • A failure to fit well; unsuitability, disparity. 

verb
  • To fit badly. 

rara avis

noun
  • A rare or unique, and thus outstanding or unusual, person or thing; a rare bird. 

  • A rare species or type of bird. 

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