chook vs covey

chook

noun
  • A chicken, especially a hen. 

  • A cooked chicken; a chicken dressed for cooking. 

intj
  • A call made to chickens. 

  • An imitation of the call of a chicken. 

covey

noun
  • A brood of partridges, grouse, etc. 

  • A party or group (of persons or things). 

  • Coordinate terms: flock, gaggle, host 

  • A group of 8–12 (or more) quail. 

verb
  • To brood; to incubate. 

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