Little cormorant 
(Cốc đen, Microcarbo niger)

The little cormorant (Microcarbo niger) is a member of the cormorant family of seabirds.

Suliformes maybe from Old Norse Sula +‎ -iformes for boobies, garnets.
The genus Phalacrocorax, from which the family name Phalacrocoracidae is derived, is Latinised from Ancient Greek φαλακρός phalakros "bald" and κόραξ korax "raven".
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".
Microcarbo combines the Ancient Greek mikros meaning "small" with the genus name Carbo that was introduced by Bernard Germain de Lacépède in 1789.
Carbo is from specific name Pelecanus carbo Linnaeus, 1758, Great Cormorant.
carbo Latin carbo charcoal.
niger: black.