At least 50,000 flamingos died in the East African region between 1993 and 1995, largely due to pollution, reports Panafrican News Agency. A number of metals have found their way into Lake Nakuru, Kenya, home to millions of flamingos, from chemical plants in the nearby Nakuru town. The presence of chromium, lead, copper, lithium, iron and mercury has adversely affected the aquatic life at the lake as well as other animal life. Lead and mercury, accumulated over a period of time, have affected both the kidney and the liver of animals, which depend on the lake for food.