• [Wiki] http://en.wikipedia.org/wiki/Amazona_amazonica.
• [AnAge] http://genomics.senescence.info/species/entry.php?species=Amazona_amazonica.
• [ADW] https://animaldiversity.org/accounts/Amazona_aestiva/.
• [AengMill1999] Aengus, W. L. and Millam, J. R. (1999). aming parent-reared orange-winged amazon parrots by neonatal handling. Zoo Biology, 6:117--187.
• [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.