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Giant ibis (Cò quăm lớn, Pseudibis gigantea)

The giant ibis (Pseudibis gigantea) is a wading bird of the ibis family, Threskiornithidae. 
The bird is confined to northern Cambodia, with a few birds surviving in extreme southern Laos and in Yok Đôn National Park, Vietnam.

Pelecaniformes translates to "pelican-shaped" or "pelican-formed," derived from the New Latin Pelecanus (pelican) + -iformes (having the form of). The term originates from the Ancient Greek pelekan (πελεκάν), which is linked to pelekys (πέλεκυς), meaning "axe," likely referencing the large, axe-like bill of the bird.

Threskiornithidae, the scientific family name for ibises and spoonbills, originates from Ancient Greek and New Latin, meaning "religious bird" or "worshipper bird". It is derived from thrēskeia (Greek for "religion" or "worship") and ornis (Greek for "bird"), likely referring to the sacred status of the ibis in ancient Egypt.

Pseudibis is a scientific genus name for a group of Southeast Asian ibises, derived from a combination of Greek and Latin meaning "false ibis". The prefix Pseudo- originates from Greek pseudos, meaning "false" or "lying," and ibis comes from the Latin/Greek term for the bird. 

Gigantea is the feminine Latin adjective meaning gigantic, huge, enormous, or mighty, derived from the Latin giganteus (of or belonging to giants). It originates from the Greek Gígantes (plural of Gígas), referring to the mythical race of great strength. 

The bird genus Pseudibis consists of three South-East Asian species in the ibis subfamily, Threskiornithinae.

1/ Red-naped ibis (Cò quăm cánh xanh or Cò quăm đen Ấn Độ or cò quăm gáy đỏ, Pseudibis papillosa) also known as the Indian black ibis or black ibis
2/ Giant ibis (Cò quăm lớn, Pseudibis gigantea)