Waterfowl
물새
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<speciesfyi-glossary slug="waterfowl"></speciesfyi-glossary>Definition
Birds that are ecologically dependent on wetlands, including ducks, geese, and swans of the order Anseriformes.
Detailed Explanation
Waterfowl have specialized bills for filtering water and sediments, waterproof plumage maintained by preen gland oil, and counter-current heat exchange systems in their legs that prevent heat loss in cold water. They play key roles in wetland ecosystems: transporting nutrients, seeds, and invertebrates between water bodies. Millions of waterfowl migrate along flyways connecting Arctic breeding grounds with temperate and tropical wintering areas.