IUCN Red List The Labrador Duck from John James Audubon's Birds of America (页面存档备份,存于互联网档案馆) The Very Last Labrador Duck - Elmira, New York Environment
Populations of the Hawaiian Duck, Laysan Duck, and Mallard. The Auk. 1993, 110 (1): 49–56. JSTOR 4088230. Recovery Strategy – Laysan Duck Revised Recovery Plan
Hymenolepidid Cestode, Hymenolepis javanensis, from an East Indian Tree Duck. Transactions of the American Microscopical Society. 1945, 64 (3): 213–219