caprid vs goat antelope

caprid

noun
  • Any member of the subfamily Caprinae. 

adj
  • Of or pertaining to the subfamily Caprinae of ruminants, of which the goat (genus Capra) is the type. 

goat antelope

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

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