Common (or Long-tailed) Tailorbird 
(Chích bông đuôi dài, Orthotomus sutorius)

Cisticolidae, Cisticolas (pronounced sis-TIC-olas): from Ancient Greek kisthos, "rock-rose", and Latin colere, "to dwell".
Orthotomus from the Ancient Greek orthotomeō, meaning 'to cut straight'.
The scientific name sutorius means "cobbler" rather than "tailor".

The common tailorbird is a songbird found across tropical Asia: upright tail, greenish upper body plumage and rust coloured forehead and crown.