caption: The image shows a greenwing duck sitting on top of a rock in the water, its feathers glistening in the sunlight. Its feathers are a mix of grey, white, green and orange, and its head is a bright green with a white patch on its forehead. Its wings are spread out and its tail feathers are fanned out, giving it a graceful and elegant look. Its beak is slightly open, as if it is about to take flight.