The King Penguin is the second largest penguin (the first being the Emperor). Size: 30 inches tall, Weight: 20 to 30 pounds, Diet: fish and squid. King Penguins breed on the sub-Antarctic islands and prefer to establish their colonies on level grounds near the sea. Their breeding season is unusually long. This picture was shot on the Herschel Island, part of the Hemite islands, a group of Chilean.