White Wagtail bird Drink Water From Running Stream close-up in Geumsan, South Korea

amur wagtail white wagtail white wagtail forage bird eat motacilla alba water stream river brook feed black color plumage wing walk rock willie pied blackbacked drink japanese pied closeup detail one single animal searching hunting hungry feathers korea wetlands slow motion perching environment beak animal behavior ground nature zoology ornithology lone boulder flowing water edge whitefaced