Ducks, geese, and swans /
Kear, Janet.
Oxford : Oxford University Press,
2005.
Includes bibliographical references (p. [771]-898) and index.
v. 1. General chapters, species accounts (Anhima to Salvadorina) -- v. 2. Species accounts (Cairina to Mergus).
Ducks.
Geese.
Swans.
Eendachtigen.