Waterfowl are birds that live on or near water. Shoot waterfowl, a waterfowl reserve, waterfowl on the lake.
The word is the same in the singular and the plural, like fowl itself. It covers ducks, geese and swans in ordinary use, and wetland reserves count waterfowl each winter because the numbers tell you the health of the whole habitat.
1nounwaterfowlBirds that live on or near water.
“Ducks, geese and other waterfowl gathered on the frozen lake.”
waterfowl is a bird.
Water plus fowl, in Middle English. Fowl is Old English fugol and once meant any bird.
Middle English
waterfoul
English, today
waterfowl
From Middle English waterfoul, water-foul, equivalent to water + fowl. Compare Old English dopfugel (“waterfowl, moorhen”) literally “dipping-fowl”.
Etymology from Wiktionary, CC BY-SA