From Sewage to Sanctuary: Melbourne's Werribee Wetland Draws Migratory Birds
Melbourne's 10,500-hectare Werribee sewage farm, started in 1897, now processes about 500 megaliters per day and has evolved into a major migratory-bird habitat with around 300 species, including Siberian migrants, earning Ramsar protection as a wetlands site and illustrating how large-scale urban infrastructure can create unexpected biodiversity; access is permit-based.