The Chattering kingfisher (Todiramphus tutus), is a species of tree kingfisher in the Alcedinidae family. The species is found in the Cook Islands and the Society Islands in French Polynesia. The species is probably closely related to the collared kingfishers of Fiji, Tonga and Samoa. It resembles the collared kingfisher but is smaller and lacks any rust color in the plumage. The breast and throat is white, and the back, wings and crown are blue-green (although the crown of the Atiu subspecies is almost entirely white). It can be told from the Tahiti kingfisher by the complete white collar.