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Blue-tailed bee-eater (Trảu ngực nâu, Merops philippinus) is a near passerine bird in the bee-eater family Meropidae. It is widely distributed across South and Southeast Asia where many populations are strongly migratory.

Chestnut-Headed Bee-Eater, or bay-headed bee-eater
(Trảu họng vàng, Merops leschenaulti)

The chestnut-headed bee-eater (Merops leschenaulti), or bay-headed bee-eater, is a bird in the bee-eater family Meropidae.

Coraciiformes: New Latin Coracias name of genus, from Greek korakias a chough + -i- + -form ; related to Greek korax raven.
The name Coraciiformes means "raven-like". Specifically, it comes from the Latin language "corax", meaning "raven" and Latin "forma", meaning "form".
Meropidae is from Merops, the genus name which is Ancient Greek for "bee-eater".

Merops is a large genus of bee-eaters, a group of birds in the family Meropidae, native to Africa, Asia, Australia and Europe. 

The genus name is Ancient Greek for "bee-eater".

1/ Asian green bee-eater (Trảu xanh nhỏ, Merops orientalis), also known as little green bee-eater, and green bee-eater
2/ Chestnut-headed bee-eater (Trảu họng vàng, Merops leschenaulti), or bay-headed bee-eater
3/ Blue-throated bee-eater (Trảu họng xanh, Merops viridis)
4/ Olive bee-eater or Madagascar bee-eater (Trảu màu ô liu, Trảu Madagascar, Merops superciliosus)