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The genus Erpornis is a bird species in the family Vireonidae of the order Passeriformes.

"Vireo" is a Latin word referring to a green migratory bird; other possible meanings: green, fresh, verdant, vigorous...
Erpornis : Greek word herpo – to creep about ; ornis- bird.

1/  White-bellied erpornis (Khướu mào bụng trắng, Erpornis zantholeuca) or simply erpornis
Formerly placed in Yuhina and often still misleadingly called "white-bellied yuhina".

The shrike-babblers are a group of small birds in the genus Pteruthius in the family Vireonidae of the order Passeriformes.

Vireonidae: Vireo / vireo Latin vireo small green migratory bird.
Pteruthius Greek pteron wing; eruthaino to dye red, to blush.

1/ Black-headed shrike-babbler (Khướu mỏ quặp bụng hung, Pteruthius rufiventer)

2/ Trilling shrike-babbler (Khướu mỏ quặp cánh vàng, Pteruthius aenobarbus)

3/ Pied shrike-babbler (Khướu mỏ quặp mày trắng, Pteruthius flaviscapis)

4/ Black-eared shrike-babbler (Khướu mỏ quặp tai đen, Pteruthius melanotis) 

5/ White-browed shrike-babbler (Pteruthius aeralatus)
Khướu mỏ quặp Blyth

6/ Dalat shrike-babbler (Pteruthius aeralatus annamensis)
Khướu mỏ quặp Đà Lạt
A sub-species of White-browed shrike-babbler (Pteruthius aeralatus)

7/ Clicking Shrike-Babbler (Pteruthius intermedius)
Khướu mỏ quặp cánh vàng

The bird family Vireonidae is comprised of vireos, small to medium-sized passerine birds found in the New World (Canada to Argentina, including Bermuda and the West Indies) and Southeast Asia. 

"Vireo" is a Latin word referring to a green migratory bird; other possible meanings: green, fresh, verdant, vigorous...