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The genus Aegithina is the single genus of the family Aegithinidae of four passerine bird species commonly known as the ioras.
The genus name is from Ancient Greek aigithos or aiginthos, a mythical bird mentioned by Aristotle and other classical authors.

1/ Common iora (Aegithina tiphia, Chim nghệ)

2/ Great iora (Aegithina lafresnayei, Chim nghệ lớn)

Common iora 
(Aegithina tiphia, Chim nghệ)

The common iora (Aegithina tiphia) is a small passerine bird found across the tropical Indian subcontinent and Southeast Asia.

Iora Greek ioros watchman, towncrier.
The genus name Aegithina is from Ancient Greek aigithos or aiginthos, a mythical bird mentioned by Aristotle and other classical authors.
tiphia: No clear origin. 

Great iora 
(Aegithina lafresnayei, Chim nghệ lớn)

The great iora (Aegithina lafresnayei) is a species of bird in the family Aegithinidae. 
The bird is found in Cambodia, China, Laos, Malaysia, Myanmar, Thailand, and Vietnam.

The genus name is from Ancient Greek aigithos or aiginthos, a mythical bird mentioned by Aristotle and other classical authors.