Grey heron (Diệc xám, Ardea cinerea)

The grey heron (Ardea cinerea) is a long-legged wading bird of the heron family, Ardeidae, native throughout temperate Europe and Asia, and also parts of Africa.

Ardea is a genus of herons. The genus name comes from the Latin word ardea meaning "heron".
Cinerea is a Latin word meaning "ash-like," "ash-colored," or "grayish".