Preserve Wetlands Sankei John Bull (Sungei Buloh Wetland Reserve) is a water reserve area located to the northwest coast of Singapore. It is completely natural to some degree. That's where we can find rare birds easily here, whether seabirds leg green plain (Common greenshank) seabird red legs ordinary (common redshank) sandpiper small (whimbrel) bird's head in Mongolian (Mongolian. plover) bittern ordinary light (cinnamon bittern), etc., and if really lucky, they might see with saltwater crocodiles. But to weekdays only to be free.