The Niau kingfisher (Todiramphus gertrudae), is a species of tree kingfisher in the Alcedinidae family. It is endemic to the island of Niau in French Polynesia. Its natural habitats are subtropical or tropical dry forests, plantations and rural gardens. Only 125 individuals remain in the wild. The Tuamotu kingfisher is a multicolored, with bright blue feathers, a dusty orange head, and a bright green back. The entire population of these birds lives in Niau, and without serious intervention, they will likely become extinct.