Around 30 free-ranging Blue Peacocks live on Peacock Island in Berlin. They are descendants of the peacocks that King Frederick William II brought to the island in 1795. Those peacocks formed the basis for a menagerie on the island. More than 800 exotic animals once lived on the little island in lake Wannsee. Later, in the year 1842, most of them were handed over in to the newly founded Berlin Zoo.