Brush-tailed penguins include adelie, chinstrap and gentoo penguins. They nest on the very edge of the Antarctic continent on southern sub-Antarctic islands and commonly lay two eggs at a time. In most years, a good proportion manages to hatch and raise both chicks. As nesting material is seriously limited here, nests usually consist of stone circles. The stones are considered to be so valuable that breeding pairs offer them to each other as gifts during mating rituals and risk irritating their neighbours by stealing stones from adjacent nests.
Scientific name: Pygoscelis
The shading illustrates the diversity of this group - the darker the colour the greater the number of species. Data provided by WWF's Wildfinder.
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