• [Wiki] http://en.wikipedia.org/wiki/Falco_sparverius.
• [AnAge] http://genomics.senescence.info/species/entry.php?species=Falco_sparverius.
• [avibase] https://avibase.bsc-eoc.org/species.jsp?lang=EN&avibaseid=20C2214E655A79AB&sec=lifehistory.
• [Kooy2010] Kooijman, S. (2010). Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge.
• [NegrChas1994] Negro, J. J., Chastin, A., and Bird, D. M. (1994). Effects of short-term food deprivation on growth of hand-reared american kestrels. The Condor, 96(3):749--760.
• [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.