A flock of Desi ducks swimming in a river in the countryside in Bangladesh, Asia

native ducks farm pond asia bangladesh flock of ducks waterfowl bird species aquaculture pond life rural farming avian duck farming aquatic birds nature wildlife agriculture water birds large group communal behavior natural habitat ornithology rural livelihood ecofriendly farming biodiversity freshwater habitat aviculture feathered animals outdoor environment animal husbandry ecosystem countryside farming practice bird flock asian countryside freerange birdlife livestock rural economy animal animals background beak bird domestic duck ducks family farm