This charismatic marine bird is easily distinguished from other penguins by its bright orange-red bill and the conspicuous white patches above each eye (3). These white patches, which usually meet across the crown, contrast highly with the black head and throat, but there may also be a scattering of white feathers on the head. The white underparts are sharply separated from the penguin's bluish-black back, which appears browner as the feathers become worn (3). The gentoo penguin has pale whitish-pink webbed feet and a fairly long tail - the most prominent tail of all penguins (2) (3) (4). As the gentoo penguin waddles along on land, its tail sticks out behind, sweeping from side to side, hence the scientific name Pygoscelis
, which means 'brush-tailed' (4). The gentoo penguin calls in a variety of ways, but the most frequently heard is a loud trumpeting which is emitted with its head thrown back (5).