noun, plural gad·walls, (especially collectively) gad·wall.
Origin of gadwall
Examples from the Web for gadwall
A month later, however (in May), we obtained nests both of this Pochard and of the Gadwall, both built among rushes on dry ground.Wild Spain (Espaa agreste)|Abel Chapman
I saw only one Gadwall Duck; these birds are found in abundance on the plains where water and rushes are to be found.Audubon and his Journals, Vol. 2|Maria R. Audubon
Gadwall, preferring deep waters, are not numerous in the shallow marisma.Unexplored Spain|Abel Chapman
The gadwall is really a southern duck, coming into the United States to breed.Game Birds and Game Fishes of the Pacific Coast|Harry Thom Payne
We have seen young Gadwall Ducks, and a pair of Geese that had young ones swimming out of our sight.Audubon and his Journals, Volume I (of 2)|Maria R. Audubon