chickadee vs sugar-plum

chickadee

noun
  • Affectionate term of address. 

  • A small passerine bird (songbird) of the genus Parus or the family Paridae. 

sugar-plum

noun
  • Term of endearment: sweetheart, darling. 

  • A round or oval sweet/piece of candy made of boiled sugar. 

How often have the words chickadee and sugar-plum occurred in a corpus of books? (source: Google Ngram Viewer )