robin redbreast vs ruddock

robin redbreast

noun

  • The European robin. 

  • Any robin. 

  • A Bow Street Runner (from the colour of his waistcoat). 

ruddock

noun

  • The European robin. 

  • A variety of red apple. 

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