chanter vs songbird

chanter

noun
  • The hedge sparrow. 

  • The pipe of a bagpipe on which the melody is played. 

  • One who chants or sings. 

  • A priest who sings in a chantry. 

songbird

noun
  • A bird having a melodious song or call. 

  • Any bird in the passerine suborder Passeri, which are distinguished by a more sophisticated vocal apparatus 

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