• [Wiki] http://en.wikipedia.org/wiki/Streptoprocne_rutila.
• [avibase] https://avibase.bsc-eoc.org/species.jsp?lang=EN&avibaseid=50222B1F0367C7EA&sec=lifehistory.
• [Kooy2010] Kooijman, S. (2010). Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge.
• [MariStil1993] Marín, M. and Stiles, F. G. (1992). On the biology of five species of swifts (Apodidae, Cypseloidinae) in {Cost} Rica. Proceedings of the Western Foundation of Vertebrate Zoology, 7(1):286--351.
• [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.