follow in someone's footsteps vs parrot

follow in someone's footsteps

verb
  • To follow the same path as someone; to take actions similar to another's. 

parrot

verb
  • To repeat (exactly what has just been said) without necessarily showing understanding, in the manner of a parrot. 

noun
  • A transponder. 

  • A kind of bird, many species of which are colorful and able to mimic human speech, of the order Psittaciformes or (narrowly) of the family Psittacidae. 

  • A parroter; a person who repeats the words or ideas of others. 

How often have the words follow in someone's footsteps and parrot occurred in a corpus of books? (source: Google Ngram Viewer )