• [Wiki] http://en.wikipedia.org/wiki/Dicrurus_macrocercus.
• [avibase] https://avibase.bsc-eoc.org/species.jsp?lang=EN&avibaseid=D90F9B0BBDBA5E57&sec=lifehistory.
• [Kooy2010] Kooijman, S. (2010). Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge.
• [NithAsok2015] Nithiyanandam, G. T. and Asokan, S. (2015). Studies on nestling growth patterns of three bird species in southern India. Scientific Journal of Zoology, 4(2):8--14. doi:10.14196/sjz.v4i2.1834.
• [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.