Chicken Little vs doomsayer

Chicken Little

noun
  • The main character in this story, a hysterical young chicken; (by extension) someone who resembles the character. 

name
  • A children’s fable about a young chicken who, in the traditional version, believes the sky is falling after an acorn hits her head. Also known by other names including The Sky is Falling. 

doomsayer

noun
  • One who makes dire predictions about the future; one who predicts doom. 

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