Pacific reef heron foraging, Egretta sacra dark morph fishing at sea coast walking by stones covered with shells in shallow water

pacific reef heron egretta sacra heron pacific reef stone sea forage bird one walk searching fish fishing grey color dark morph thailand water shallow beach seashore shore fowl egret eastern reef heron eastern beak closeup slow motion predatory ecosystem environment feathers feed national geographic ornithology prey watching wildlife wilderness wild hunter hunting bill wetland foraging coastline feather