One of the things human beings are very bad at — a list that includes having a thought without posting it on Facebook — is transcribing bird calls. There are just certain things a particular species isn't equipped to do. You wouldn't ask a blue whale to cook an omelette. Sure, they can sift flour, but they can't crack eggs. Those great flippers don't have the dexterity. And whales are smart enough to know that — which is why, even with massive unemployment in the whale world, none of them ever apply for jobs as short-order cooks.