Coues's gadwall (Mareca strepera couesi) or the Washington Island gadwall, is an extinct dabbling duck which is only known by two immature specimens from the Pacific island of Teraina, Line Islands, Kiribati.
Coues's gadwall (Mareca strepera couesi), also known as Washington Island gadwall, is an extinct dabbling duck that was only known from two immature specimens discovered on Teraina, a Pacific island in the Line Islands, Kiribati.