Chú thích Dicrurus

  1. ↑ Clements, J. F., T. S. Schulenberg, M. J. Iliff, B.L. Sullivan, C. L. Wood, and D. Roberson (2012). “The eBird/Clements checklist of birds of the world: Version 6.7.”. Truy cập ngày 19 tháng 12 năm 2012. 
  2. ↑ Dickinson E. C. & Christidis L. (chủ biên). 2014. The Howard and Moore Complete Checklist of the Birds of the World. 4th edition, Vol. 2. Passerines. Aves Press, Eastbourne, UK.
  3. ↑ Crow-billed Drongo (Dicrurus annectens)
  4. 1 2 Fuchs J. et al., 2017. Diversification across major biogeographic breaks in the African Shining/Square-tailed drongos complex (Passeriformes: Dicruridae). Zoologica Scripta 46: 27-41 doi:10.1111/zsc.12191
  5. 1 2 Jerome Fuchs et al. 2018. Taxonomic revision of the Square-tailed Drongo species complex (Passeriformes: Dicruridae) with description of a new species from western Africa. Zootaxa 4438 (1); doi:10.11646/zootaxa.4438.1.4