chickadee vs sugar baby

chickadee

noun
  • Affectionate term of address. 

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

sugar baby

noun
  • A term of endearment; sweetheart. 

  • The younger recipient (usually female or a bottom) of interest from a sugar daddy or sugar mama, especially financial and romantic in an intergenerational relationship 

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