Bucephala albeola - Description of the bufflehead, a small North American diving duck. animaldiversity.ummz.umich.edu/accounts/bucephala/b._albeola$narrative.html
Bucephala clangula - Movies and description of the Common Goldeneye. www.birdguides.com/html/vidlib/species/Bucephala_clangula.htm
Bucephala islandica - Images of the Barrow's Goldeneye. www1.bos.nl/~dvuijk/birds/data/Bucephala-islandica/bucephala_islandica.html
