• [Wiki] http://en.wikipedia.org/wiki/Opisthocomus_hoazin.
• [ALR] http://animals.jrank.org/pages/582/Hoatzin-Opisthocomiformes.html.
• [ADW] http://animaldiversity.ummz.umich.edu/accounts/Opisthocomus_hoazin/.
• [GodoLey2008] Godoy-Vitorino, F., Ley, R., Gao, Z., Pei, Z., Ortiz-Zuazaga, H., Pericchi, L., Garcia-Amado, M. A., Michelangeli, F., Blaser, M. J., Gordon, J. I., and Domínguez-Bello, M. G. (2008). Bacterial community in the crop of the hoatzin, a neotropical folivorous flying bird. Applied and Environmental Microbiology, 74(19):5905--5912.
• [Kooy2010] Kooijman, S. (2010). Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge.
• [KuehGood1990] Kuehler, C. and Good, J. (1990). Artificial incubation of bird eggs at the zoological society of san diego. International Zoo Yearbook, 29:118--136.
• [Mull2004] Mullner, A. (2004). Breeding ecology and related life-history traits of the hoatzin, Opisthocomus hoazin, in a primary rainforest habitat. Technical report, Bayerischen Julius-Maximilians-Universitat, Wurzburg.
• [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.