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The Little Penguin

Little Penguin :: WLR:- Like all penguins, the little penguin's wings have developed into flippers used for swimming. The Little Penguin typically grows to between 30 and 33 cm (12 to 13 inches) tall and usually weighs about 1.5 kilogram on average (3.3 pounds). The head and upperparts are blue in colour, with slate-grey ear coverts fading to white underneath, from the chin to the belly. The flippers are blue. The dark grey-black beak is 3–4 cm long, the irises pale silvery- or bluish-grey or hazel, and the feet pink above with black soles and webbing. An immature individual will have a shorter bill and lighter upperparts.

Like most seabirds, they have a long lifespan. The average for the species is 6.5 years, but flipper ringing experiments show in very exceptional cases up to 25 years in captivity.

These birds feed by hunting fish, squid and other small sea animals, for which they travel and dive quite extensively. They are generally inshore feeders. The use of dataloggers has provided information of the diving behaviour of Little Penguins. 50% of their dives go no deeper than 2 m and the mean diving time is 21 seconds. Yet, they are able to dive as deep as 20m and remained submerged as long as 60 sec

Little Penguins mature at different ages. The female matures at 2 years old. However the male matures at 3 years old. Little Penguins only remain faithful to their partner in breeding seasons and whilst hatching eggs. At other times of the year they do tend to swap burrows. They exhibit site fidelity to their nesting colonies and nesting sites over successive years.

Little Penguins live year-round in large colonies, with each individual breeding pair forming a burrow in which to raise their chicks (of which two are born at a time, usually about 2 days apart). One is the heir to the family and the other is the spare, in case anything was to happen to the first. Little Penguins typically return to their colonies to feed their chicks at dusk. The birds will tend to come ashore in small groups to provide some defense against predators which might pick off individuals one by one. In Australia, the strongest colonies are usually on cat-free and fox-free islands. However, the population on Granite Island (which is a fox, cat and dog-free island) has been severely depleted, from around 2000 penguins in the year of 2001 down to 146 in 2009.

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