francolin vs quail

francolin

noun
  • Any of various terrestrial partridges of several genera in family Phasianidae, principally in tribe Gallini. 

quail

noun
  • Any of various small game birds of the genera Coturnix, Anurophasis or Perdicula in the Old World family Phasianidae or of the New World family Odontophoridae. 

  • The meat from this bird eaten as food. 

verb
  • Of courage, faith, etc.: to slacken, to give way. 

  • To waste away; to fade, to wither. 

  • To lose heart or courage; to be daunted or fearful. 

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