A duck walking from the right to the left, herd in the water looking around, another herd on the grass grazing

deers of asia sambar deer phu khiao wildlife sanctuary stag deer wild animals wildlife mammals artiodactyla herd grazing sambar animals doe ruminants in asia rusa antlers national parks in thailand wild birds ruminant cervidae omnivorous grassland national parks natural habitat rusa unicolor vulnerable species nature prey 4k footage sanctuary brown jungles lake muntiacus pheasants 4k resolution forest forests afternoon cervinae cud water grass summer predator trees vulnerable green