knob-billed duck in the lake, native bird of africa and south asia

adult africa african animal animals asia beach beak beautiful billed bird birdwatching black closeup coast comb crow duck environment eye fast fauna feather gray horizontal india knob knob-billed knobbilled lake melanotos moving native natural nature ornithology outdoor outdoors pond reflection ripple river sarkidiornis south spray spring summer sunlight swimming watching water weird wetlands wild wildlife