Black-billed Nightingale-Thrush

Here the details of the Black-billed Nightingale-Thrush named bird below:

SCI Name:  Catharus gracilirostris
Protonym:  Catharus gracilirostris Proc.Zool.Soc.London(1864) (1864), Pt3 p.580
Taxonomy:  Passeriformes / Turdidae / Catharus
Taxonomy Code:  bbnthr1
Type Locality:  Costa Rica (Volcan de Cartago).
Author:  Salvin
Publish Year:  1865
IUCN Status:  Least Concern

DEFINITIONS

CATHARUS
(Turdidae; Ϯ Orange-billed Nightingale Thrush C. aurantiirostris) Gr. καθαρος katharos  pure, clean; alluding to the immaculate brown and white plumage of the Orange-billed Nightingale Thrush; "577. Catharus, Bp. (Turdus, p. Auct.) Rostrum Turdorum: pedes elongati, robusti: alae breves, rotundatae; remigum prima octavum aequante; tertia, quarta et quinta omnium longissimis: cauda brevis, rotundata.   America mer.  1.  *TURDUS immaculatus, Bp. Mus. Lugd. ex Caraccas.   Similis T. minoribus Amer. s. sed absque macularum vel suspicione. Rufo-olivaceus: subtus albus; pectore, lateribusque ardosiaceis." (Bonaparte 1850); "Catharus Bonaparte, 1851, Consp. Av., 1 (1850), p. 278. Type, by monotypy, Turdus immaculatus Bonaparte = Turdus aurantiirostris Hartlaub." (Ripley in Peters, 1964, X, p. 164).
Synon. Malacocichla.

gracilirostris
L. gracilis  slender; -rostris  -billed  < rostrum  beak.

SUBSPECIES

Black-billed Nightingale-Thrush (gracilirostris)
SCI Name: Catharus gracilirostris gracilirostris
gracilirostris
L. gracilis  slender; -rostris  -billed  < rostrum  beak.

Black-billed Nightingale-Thrush (accentor)
SCI Name: Catharus gracilirostris accentor
accentor
● "Accentor - one who sings with another   ...  Like other members of the genus this bird is a fine songster" (Bangs 1902) (subsp. Catharus gracilirostris).
● Mod. English Accentor, coined by Fleming 1828  < French Accenteur  < L. ad  towards; cantor, cantoris  singer  < canere  to sing; “A peculiar little bird, with a throat like an Alpine Accentor.” (Whitehead in Sharpe 1888) (Locustella).