• [Wiki] http://en.wikipedia.org/wiki/Canvasback.
• [AnAge] http://genomics.senescence.info/species/entry.php?species=Aythya_fuligula.
• [ADW] http://animaldiversity.org/accounts/Canvasback/.
• [Kooy2010] Kooijman, S. (2010). Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge.
• [LighAnkn1984] Lightbody, J. P. and Ankney, C. D. (1984). Seasonal influence on the strategies of growth and development of canvasback and lesser scaup ducklings. The Auk, 101:121--133.
• [PrinPres1991] Prinzinger, R., A.Preßmar, and Schleucher, E. (1991). Body temperature in birds. Comp. Biochem. Physiol., 99A(4):499--506. doi:10.1016/0300-9629(91)90122-S.