grey partridge vs quail

grey partridge

noun
  • A game bird in the pheasant family, Perdix perdix. 

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 grey partridge and quail occurred in a corpus of books? (source: Google Ngram Viewer )