bullfinch vs painted bunting

bullfinch

noun
  • Any of various other Old World finches in the genus Pyrrhula. 

  • The Eurasian bullfinch (Pyrrhula pyrrhula). 

painted bunting

noun
  • A brightly-colored finch (Passerina ciris) of the southern United States 

  • Smith's longspur (Calcarius pictus). 

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