• [Wiki] http://en.wikipedia.org/wiki/Tachymarptis_melba.
• [avibase] https://avibase.bsc-eoc.org/species.jsp?lang=EN&avibaseid=FA1CAD2906F7C845&sec=lifehistory.
• [BizeMetc2006] Bize, P., Metcalfe, N. B., and Roulin, A. (2006). Catch-up growth strategies differ between body structures: Interactions between age and structure-specific growth in wild nestling alpine swifts. Functional Ecology, 20(5):857--864.
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• [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.