• [Wiki] http://en.wikipedia.org/wiki/Sula_nebouxii.
• [AnAge] http://genomics.senescence.info/species/entry.php?species=Sula_nebouxii.
• [ADW] http://animaldiversity.org/accounts/Sula_sula/.
• [DuffRick1981] Duffy, D. C. and Ricklefs, R. E. (1981). Observations on growth of blue-footed boobies and development of temperature regulation in Peruvian guano birds. JOURNAL OF FIELD ORNITHOLOGY, 52:332--336.
• [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.
• [ShalWhit1973] Shallenberger, R. J., Whittow, G. C., and Smith, R. M. (1973). Body temperature of the nesting red-footed booby (Sula sula). Can. Wildl. Serv. Rept. Ser., 17:36.