The bird is not as big as a chicken. Much smaller than a dove, but not the size of a sparrow. The bird's feet are ladder. However, not as long as the stork's feet.
I met the bird in the Krueng Lamnyong river basin. Jumping up and down, ducking occasionally among the green grass. When I got closer, this bird flew away. But not far. The bird came back when I was silent.
I don't know the name of this bird. I shot at almost sunset using a Nikon D300s camera.