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Butorides is a genus of small herons in the family Ardeidae. Butorides is from Middle English Butor "bittern" and Ancient Greek -oides, "resembling".
It contains three similar species which were formerly considered one species:
-the green heron or green-backed heron, Butorides virescens;
- the lava heron (Butorides sundevalli);
- and the striated heron, Butorides striatus.

1/ Striated heron (Cò xanh, Butorides striata) also known as mangrove heron, little green heron or green-backed heron