craw vs fauces

craw

noun
  • The crop of a bird. 

fauces

noun
  • That portion of the interior of a spiral shell which can be seen by looking into the aperture. 

  • The throat of a calyx, corolla, etc. 

  • The narrow passage from the mouth to the pharynx, situated between the soft palate and the base of the tongue. 

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