Red-crowned cranes standing in the river mist seen from Otowa Bridge, Akan District, Hokkaido

water bird vertebrate natural landscape plant body of water atmospheric phenomenon tree watercourse bank lake landscape cloud animal migration mist wildlife waterfowl winter grass flock lacustrine plain wetland bird migration water bird reflection freezing duck reservoir ducks, geese and swans evening sky pond bog grassland lake district tidal marsh freshwater marsh fog loch marsh darkness night floodplain