ginge vs redpoll

ginge

noun
  • A red-haired person. 

adj
  • ginger, red-haired 

redpoll

noun
  • Any of various finches in the genus Acanthis (syn. Carduelis), which have characteristic red markings on their heads. 

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