Greater Racket-Tailed Drongo 
(Chèo bẻo cờ đuôi chẻ, Dicrurus paradiseus)

The greater racket-tailed drongo (Dicrurus paradiseus) is a medium-sized Asian bird which is distinctive in having elongated outer tail feathers with webbing restricted to the tips. 

Dicrurus is derived from the Greek words dikros meaning forked, ouros meaning tailed.
Paradisaea / paradisaea / paradisea / paradiseus / paradisi Late L. paradisus paradise: Greek paradeisos paradise, pleasure ground of the Persian kings.