Chestnut-headed tesia 
(Chích đuôi cụt bụng vàng, Cettia castaneocoronata)

The chestnut-headed tesia (Cettia castaneocoronata) is a small insectivorous songbird formerly of the "Old World warbler" family but nowadays placed in the bush warbler family (Cettiidae).
The bird is found in Bangladesh, Bhutan, China, India, Laos, Myanmar, Nepal, Thailand, and Vietnam.

The chestnut-headed tesia was formerly included in the genus Tesia. 
A molecular phylogenetic study published in 2011 found that the chestnut-headed tesia (Chích đuôi cụt bụng vàng) belongs to the genus Cettia, bush warbler. 
The species was moved but retained the same common name or sometimes referred to as Cettia castaneocoronata abadiei

Traits:
- Chestnut-headed;
- Yellow-throated;
- White-eyering: There is an arc of white-eyering adjacent to the ear.

Cettiidae: Cettia from Francesco Cetti.
The specific epithet castaneocoronata combines the Latin castaneus meaning "chestnut-coloured" and coronatus meaning "crowned".