The Little Penguin (Eudyptula minor) is the smallest species of penguin, typically growing to 32cm tall and weighing 1.5kg. They have several common names; Fairy Penguins, Little Blue Penguins, Blue Penguins or Kororā (Māori). The Little Penguin breeds along the entire coastline of New Zealand, the Chatham Islands, and southern Australia. They spend the whole day swimming in the sea being inshore feeders, hunting fish, squid and other small sea animals, for which they travel and dive quite extensively, heading out at sunrise and hunting into the evening. Little Penguins preen their feathers to keep them waterproof by rubbing a tiny drop of oil onto each feather from a special gland above the tail. The greatest threat to Little Penguin populations has been predation by introduced predators, and in some cases this has led to complete colony collapse in just a few years with the arrival of new predators such as dogs, cats, mustelids or foxes. They are also sometimes preyed upon by New Zealand fur seals.