Roseate tern (Nhàn hồng, Sterna dougallii)

The roseate tern (Sterna dougallii) is a species of tern in the family Laridae.

Charadriiformes, Charadriidae, Charadrius: Late Latin word for a yellowish bird mentioned in the fourth-century Vulgate; from Ancient Greek kharadrios a bird found in ravines and river valleys (kharadra, "ravine").

Laridae:from Ancient Greek laros or Latin larus, which appears to have referred to a gull or other large seabird.

The genus name Sterna is derived from Old English "stearn", "tern".

"Roseate" refers to the bird's pink breast in breeding plumage.