{{cite journal}}:  CS1 maint: multiple names: authors list (link)↑ Chari, N. (1982). "Comparative studies on flight characteristics, moment of inertia and flight behaviour of two fly-catchers, Dicrurus adsimilis and Merops orientalis". Ind. J. Exp. Biol. 20: 894–896. {{cite journal}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)↑ 17.0 17.1 17.2 Whistler, Hugh (1949). Popular handbook of Indian birds. 4th ed. Gurney and Jackson, London. pp. 155–157.↑ Decandido, Robert; Nualsri, Chukiat and Allen, Deborah (2004). "Migration of Black Drongo Dicrurus macrocercus in southern Thailand in autumn 2003" (PDF). Forktail. 20: 143–144. Archived from the original on 2008-10-11. සම්ප්‍රවේශය 2016-02-23.{{cite journal}}:  CS1 maint: bot: original URL status unknown (link) CS1 maint: multiple names: authors list (link)↑ 19.0 19.1 Fritts, Thomas H. and Rodda, Gordon H. (1998). "The role of introduced species in the degradation of island ecosystems: A case history of Guam" (P