barnacle goose vs brant

barnacle goose

noun
  • A black and white species of bird within the family Anatidae from the northern hemisphere, Branta leucopsis. 

brant

noun
  • Any of several wild geese, of the genus Branta, that breed in the Arctic, but especially the brent goose, Branta bernicla. 

adj
  • smooth; unwrinkled 

  • steep, precipitous. 

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