Oriental darter or Indian darter (Anhinga melanogaster ) is a water bird of tropical South Asia and Southeast Asia. It has a long and slender neck with a straight, pointed bill and, like the cormorant, it hunts for fish while its body submerged is in water. It spears a fish underwater, brings it to the surface and tosses it into the air before swallowing it. The body remains submerged as it swims, and the slender neck alone is visible above the water, which accounts for its other name: snakebird. Like the cormorants, it has wettable feathers and it is often found perched on a rock or branch with its wings held open to dry. Bundala National Park - Sri Lanka.