braying vs growling

braying

noun

  • An act or sound of braying. 

growling

noun

  • A sustained instance of growls or guttural noises. 

  • The technique of producing a low-pitched growling or rumbling sound on a wind instrument. 

adj

  • Producing a growl. 

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