Donald's Penguin

Also known as El pingüino de Donald, Donald und der Pinguin, Il pinguino di Paperino

Admiral Byrd ships Donald a penguin from the South Pole. Donald is amused by it, until he thinks it has eaten his goldfish. It hasn't - yet - so Donald gets a fish from the fridge to make amends. When he comes back, though, he's got a reason to be upset with the penguin.