Sounds of the wild

A mother was reading a book about animals to her 3 year old daughter. Mother: "What does the cow say?" Child: "Moo!" Mother: "Great! What does the cat say?" Child: "Meow." Mother: "Oh, you're so smart! What does the frog say?" And this wide-eyed little 3 year-old looked up at her mother and in her deepest voice replied, "Bud."