A stunning blue-and-white kingfisher with entirely blue upperparts in both sexes. Female has white throat and pale blue breast and belly, but male shows more white, with pale blue confined to belly. Juvenile resembles dull male, with buff throat, spot near bill, and speckled breast and collar. Found singly and in pairs in lowland wooded areas, including cultivated areas and mangroves. Pale blue underside is unique among kingfishers in its limited south Moluccan range. Rowdy vocalizations include repetitive “ker-chick” series and “ki-ki-ki-ki…” calls.