The White-mantled kingfisher or New Britain kingfisher (Todiramphus albonotatus), is a species of tree kingfisher in the Alcedinidae family. It is endemic to New Britain off Papua New Guinea. Its natural habitat is tropical moist lowland forests. The white-mantled kingfisher is 16–18 cm in length and has a black bill, and the plumage is mostly white in the male, with blue wings, tail, a turquoise crown, and a thick black stripe through the eye. The female is similar to the male but has blue on the lower back. The call is a rapid descending "kee-ku-ko-ko" or a trilling "ki-ki-ki-ki-ki".