Lesser racket-tailed drongo 
(Chèo bẻo cờ đuôi bằng, Dicrurus remifer)

The lesser racket-tailed drongo (Dicrurus remifer) is a species of bird in the family Dicruridae.
The bird is found in the Indian Subcontinent and Southeast Asia: Bangladesh, Bhutan, Cambodia, India, Indonesia, Laos, Malaysia, Myanmar, Nepal, Thailand, and Vietnam.

Compare:
- Greater racket-tailed drongo: has a crest, tail not square cut;
- Lesser racket-tailed drongo : no crest, tail square cut

Dicruridae or Dicrurus is derived from the Greek words dikros meaning forked, ouros meaning tailed.
remifer: Latin remus, remi oar; -fer bearing (ferre to bear).