n. birds, such as ducks, geese and swans, that spend most of their non-flying time on water; especially those of the family Anatidae
the GNU version of the Collaborative International Dictionary of English
n. Any bird that frequents the water, or lives about rivers, lakes, etc., or on or near the sea; an aquatic fowl; -- used also collectively.
The Century Dictionary and Cyclopedia
n. Same as water-birds.
n. In a restricted sense, swimming birds, especially those which, as the Anseres, are used for food or for any reason engage the attention of sportsmen.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. freshwater aquatic bird
Word Usage
"This whole lead thing (excluding lead shot use in waterfowl hunting) really is a somewhat sad current state of affairs."