blind-fly vs deer ked

blind-fly

noun
  • Any of several medium-sized blood-sucking flies, of the family Tabanidae, usually species in the genus Haematopota. 

  • The game of blind man's buff 

deer ked

noun
  • A Eurasian species of louse fly in the family Hippoboscidae, Lipoptena cervi, that are parasites of elk, deer and other bovine animals, sucking blood and laying eggs in the fur of the host animals. 

How often have the words blind-fly and deer ked occurred in a corpus of books? (source: Google Ngram Viewer )