Darth Vader Would Be Scary as a Whale

My kids can sing the Darth Vader theme song in the voice of just about animal: a sheep is "baa baa baa baabuhbaa buhbabaa" and a pig is "oink oink oink oinkoinkoink oinkoinkoink"-- but yesterday Alex tried it as a blue whale and although I admire his spirit of artistic experimentation, I would have to say that his impression of a cetacean is pretty poor.