Asian Openbill Stork

Asian Openbill Stork is a broad-winged bird.Breeding adults are all white except for the black wing flight feathers, red legs and dull yellow-grey bill. The mandibles do not meet except at the tip, and this gives rise to the species' name. Non-breeding adults have the white of the plumage replaced by off-white. Young birds have brown tinge to the plumage.
The Asian Openbill Stork, like most of its relatives, walks slowly and steadily on the ground, feeding on molluscs, frogs and large insects. Wikipedia.