A flock of ducks congregating by a farm pond in Bangladesh

native ducks farm pond asia bangladesh waterfowl bird flock aquaculture duck farming rural scene pondside avian feathered outdoors congregation wild birds nature agricultural practice husbandry eco farming wetland birds large group animal husbandry livestock countryside freshwater habitat aviculture duck species waterside birdlife farm life flocking waters edge sunny day green grass blue water natural light farming activity winged animals biodiversity ecofriendly farming rural livelihood pond life habitat foraging bird gathering aquatic birds animal agriculture indian spotbilled duck lesser whistling duck