Atlantic puffin vs bullfinch

Atlantic puffin

noun
  • A species of puffin (Fratercula arctica). 

bullfinch

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

  • The Eurasian bullfinch (Pyrrhula pyrrhula). 

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