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Great cormorant 
(Cốc đế, Phalacrocorax carbo), known as the black shag

The great cormorant (Phalacrocorax carbo) is a widespread member of the cormorant family Phalacrocoracidae of seabirds.
Other names: the black shag or kawau in New Zealand, the great black cormorant across the Northern Hemisphere, the black cormorant in Australia, and the large cormorant in India.

Suliformes maybe from Old Norse Sula +‎ -iformes for boobies, gannets.
phalacrocorax (“coot, cormorant”), from Ancient Greek φαλακρός (phalakrós, “bald”) (from φαλός (phalós, “white”) + ἄκρον (ákron, “top”)) + κόραξ (kórax, “raven”).
"Cormorant" is a contraction derived either directly from Latin corvus marinus, "sea raven".
Carbo is from specific name Pelecanus carbo Linnaeus, 1758, Great Cormorant.
carbo Latin carbo charcoal.

Phalacrocorax is a genus of fish-eating birds in the cormorant family Phalacrocoracidae, order Suliformes. Members of this genus are also known as the Old World cormorants.

Suliformes maybe from Old Norse Sula +‎ -iformes for boobies, gannets.
phalacrocorax (“coot, cormorant”), from Ancient Greek φαλακρός (phalakrós, “bald”) (from φαλός (phalós, “white”) + ἄκρον (ákron, “top”)) + κόραξ (kórax, “raven”).
"Cormorant" is a contraction derived either directly from Latin corvus marinus, "sea raven".
Carbo is from specific name Pelecanus carbo Linnaeus, 1758, Great Cormorant.

1/ Great cormorant (Cốc đế, Phalacrocorax carbo), known as the black shag
2/ Indian cormorant or Indian shag (Cốc đế nhỏ, Phalacrocorax fuscicollis)