• [Wiki] http://en.wikipedia.org/wiki/Eudyptes_chrysolophus.
• [avibase] https://avibase.bsc-eoc.org/species.jsp?lang=EN&avibaseid=2C2BC004781E7F20&sec=lifehistory.
• [Brow1987] Brown, C. R. (1987). Energy requirements for growth and maintenance in macaroni and rockhopper penguins. Polar Biol., 8:95--102.
• [Brow1988] Brown, C. R. (1988). Egg temperature and embryonic metabolism of A- and B-eggs of macaroni and rockhopper penguins. S.-Afr. Tydskr. Dierk., 23(3):166--172.
• [Kooy2010] Kooijman, S. (2010). Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge.
• [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.