bezoar goat vs goat antelope

bezoar goat

noun
  • A wild goat, Capra aegagrus, native to Asia Minor and the Middle East and also found on Crete, now believed ancestral to the domestic goat. 

goat antelope

noun
  • Any of a group of herbivore mammals, the subfamily Caprinae, that includes domestic sheep and goats. 

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