• [Wiki] http://en.wikipedia.org/wiki/Falco_biarmicus.
• [avibase] https://avibase.bsc-eoc.org/species.jsp?lang=EN&avibaseid=3D3808E38BB61165&sec=lifehistory.
• [Kemp1975] Kemp, A. C. (1975). The development of a lanner falcon chick, Falco biarmicus Temminck (Aves: Falconidae). Anale van die Transvaal Museum, 29(11):191--197.
• [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.