Close-up of brown dipper perching on algae covered stream bank eating insects

asian dipper cinclus pallasii pallass dipper dipper foraging resident bird habitat bird avian c p pallasii terrestrial freshwater subspecies wildlife species streambank ornithology birdwatching stream palearctic songbird invertebrates algae plumage distribution environment ecosystem stone nature aquatic animals eating closeup water brown round natural cute ripples food outdoor feather elevation wild hill clear thrushlike mountains