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"The dipper (Cinclus aquaticus)", which is a type of aquatic songbird known for its unique ability to dive and swim underwater. It is a stout, short-tailed bird typically found near fast-flowing rivers and streams. These birds are often referred to as "water ouzels" and are known for their habit of bobbing or dipping up and down when perched on rocks. They serve as an indicator species, as their presence suggests good water quality.