Perhaps migrant Heron

I would assume this was a Chinese Pond Heron, simply because previous similar sightings of this Pond Heron had turned out to be so when this bird assumed breeding plumage.  So I believe that only the CPH visits the taman, and this one could also be a migrant; these herons normally frequent wetlands like marshes and open fields.  Anyway this particular bird seems only interested in foraging in the ground, and being successful too.
I waited for it to fish as it was by the pond but not once did it try its luck in the water.  And it looked like it had heightened sense of human presence that the entire time I watched it, it hardly moved.  Still it was most fortunate that I managed to sight it as it was truly so into the grassy background.

A couple of days later it was still around, again foraging away from the pond.