Slender-billed Crow

Here the details of the Slender-billed Crow named bird below:

SCI Name:  Corvus enca
Protonym:  Fregilus Enca Trans.Linn.Soc.London(1), 13 p.164
Taxonomy:  Passeriformes / Corvidae / Corvus
Taxonomy Code:  slbcro1
Type Locality:  Java.
Author:  Horsfield
Publish Year:  1821
IUCN Status:  Least Concern

DEFINITIONS

CORVUS
(Corvidae; Ϯ Common Raven C. corax) L. corvus  raven. In fable the Raven was originally white but, despite its supposed gift of prophecy, was turned into a black bird for its treachery. The Common or Northern Raven is the largest species of passerine bird; "48. CORVUS.  Rostrum convexum, cultratum, basi pennis setaceis tectum.  Lingua cartilaginea bifida." (Linnaeus 1758); "Corvus Linnaeus, 1758, Syst. Nat., ed. 10, 1, p. 105. Type, by tautonymy, "Corvus", i.e. Corvus corax Linnaeus." (Blake & Vaurie in Peters, 1962, XV, p. 261).  This is the ninth diagnosed genus in avian taxonomy.  Linnaeus's Corvus comprised twelve species (C. Corax, C. Corone, C. frugilegus, C. Cornix, C. Monedula, C. benghalensis, C. glandarius, C. cristatus, C. Caryocatactes, C. Pica, C. paradisi, C. infaustus).     
Var. Cervus, Coruus.   
Synon. Amblycorax, Anomalocorax, Archicorax, Coloeus, Corax, Corone, Corvultur, Frugilegus, Gymnocorax, Gymnocorvus, Heterocorax, Macrocorax, Microcorax, Monedula, Nesocorax, Palaeocorax, Physocorax, Pterocorax, Rhinocorax, Sitocorax, Trypanocorax.

corvus
L. corvus raven.
● From a local name Caa Maa crow gull, for the Black-legged Kittiwake in the Shetlands (syn. Rissa tridactyla).

enca
Javanese names Enca and Engkak for a crow (Corvus).

SUBSPECIES

Slender-billed Crow (Sierra Madre)
SCI Name: Corvus enca samarensis/sierramadrensis
CORVUS
(Corvidae; Ϯ Common Raven C. corax) L. corvus  raven. In fable the Raven was originally white but, despite its supposed gift of prophecy, was turned into a black bird for its treachery. The Common or Northern Raven is the largest species of passerine bird; "48. CORVUS.  Rostrum convexum, cultratum, basi pennis setaceis tectum.  Lingua cartilaginea bifida." (Linnaeus 1758); "Corvus Linnaeus, 1758, Syst. Nat., ed. 10, 1, p. 105. Type, by tautonymy, "Corvus", i.e. Corvus corax Linnaeus." (Blake & Vaurie in Peters, 1962, XV, p. 261).  This is the ninth diagnosed genus in avian taxonomy.  Linnaeus's Corvus comprised twelve species (C. Corax, C. Corone, C. frugilegus, C. Cornix, C. Monedula, C. benghalensis, C. glandarius, C. cristatus, C. Caryocatactes, C. Pica, C. paradisi, C. infaustus).     
Var. Cervus, Coruus.   
Synon. Amblycorax, Anomalocorax, Archicorax, Coloeus, Corax, Corone, Corvultur, Frugilegus, Gymnocorax, Gymnocorvus, Heterocorax, Macrocorax, Microcorax, Monedula, Nesocorax, Palaeocorax, Physocorax, Pterocorax, Rhinocorax, Sitocorax, Trypanocorax.

Slender-billed Crow (Slender-billed)
SCI Name: Corvus enca [enca Group]
CORVUS
(Corvidae; Ϯ Common Raven C. corax) L. corvus  raven. In fable the Raven was originally white but, despite its supposed gift of prophecy, was turned into a black bird for its treachery. The Common or Northern Raven is the largest species of passerine bird; "48. CORVUS.  Rostrum convexum, cultratum, basi pennis setaceis tectum.  Lingua cartilaginea bifida." (Linnaeus 1758); "Corvus Linnaeus, 1758, Syst. Nat., ed. 10, 1, p. 105. Type, by tautonymy, "Corvus", i.e. Corvus corax Linnaeus." (Blake & Vaurie in Peters, 1962, XV, p. 261).  This is the ninth diagnosed genus in avian taxonomy.  Linnaeus's Corvus comprised twelve species (C. Corax, C. Corone, C. frugilegus, C. Cornix, C. Monedula, C. benghalensis, C. glandarius, C. cristatus, C. Caryocatactes, C. Pica, C. paradisi, C. infaustus).     
Var. Cervus, Coruus.   
Synon. Amblycorax, Anomalocorax, Archicorax, Coloeus, Corax, Corone, Corvultur, Frugilegus, Gymnocorax, Gymnocorvus, Heterocorax, Macrocorax, Microcorax, Monedula, Nesocorax, Palaeocorax, Physocorax, Pterocorax, Rhinocorax, Sitocorax, Trypanocorax.