red fox vs tod

red fox

noun
  • A common species of fox, Vulpes vulpes native to North America, Asia, Europe and North Africa; small, with reddish fur, but larger than the arctic fox. 

  • Certain varieties of species of genus Celosia, such as of Celosia argentea. 

tod

noun
  • A fox in general. 

  • A bush, especially of ivy. 

  • A male fox. 

  • An old English measure of weight, usually of wool, containing two stone or 28 pounds (13 kg). 

  • Someone like a fox; a crafty person. 

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