nonconformist vs rara avis

nonconformist

noun
  • A noctuid moth (Lithophane lamda). 

  • Loosely, a Christian who does not conform to the doctrines of an established church. 

  • Someone who does not conform to accepted beliefs, customs or practices. 

  • A member of a church separated from the Church of England; a Protestant dissenter. 

adj
  • Not conforming to established customs, etc. 

rara avis

noun
  • A rare species or type of bird. 

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

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