The White-shouldered triller (Lalage sueurii), is a species of triller in the Campephagidae family. It is found in Indonesia and East Timor. The white-winged triller (Lalage tricolor) of Australia and New Guinea was formerly included in this species but is now treated as a separate species. The pied triller is similar but is slightly smaller with a broader stripe above the eye and more white in the wing. The male white-winged triller has no white stripe over the eye.