Black-throated Gray Warbler

Here the details of the Black-throated Gray Warbler named bird below:

SCI Name:  Setophaga nigrescens
Protonym:  Sylvia nigrescens J.Acad.Nat.Sci.Philadelphia 7 p.191
Taxonomy:  Passeriformes / Parulidae / Setophaga
Taxonomy Code:  btywar
Type Locality:  no locality; cotypes from vicinity of Fort William, near Portland, Oregon, fide Deignan, 1961, Bull. U. S. Nat. Mus., 221, p. 536.
Author:  Townsend, JK
Publish Year:  1837
IUCN Status:  Least Concern

DEFINITIONS

SETOPHAGA
(Parulidae; Ϯ American Redstart S. ruticilla) Gr. σης sēs, σητος sētos  moth; -φαγος -phagos  -eating  < φαγειν phagein  to eat; "G. SETOPHAGA.  Sw. in Zool. Journ. No. 10.    17. Setophaga ruticilla.  Muscicapa ruticilla, Lin. mas.  M. flavicaudæ. Gm. fem. Maritime parts.   18. Setophaga miniata.  Cinereous, breast and body beneath vermilion; tail black, the lateral tail feathers partly white.  Table land: woods of Valadolid; rare, size of the last.   19. Setophaga rubra.  Entirely red, ear feathers of a silky whiteness. Inhabits the same woods, and is of the same size as the last." (Swainson 1827 (May)); "SETOPHAGA.  Rostrum parvum; culmine carinato. Alæ mediocres; remigibus 1^ma et 4^ta æqualibus, 2^da et 3^tia æqualibus, longissimis. Cauda sub-elongata, rotundata. Pedes graciles, tarsis squamis anterioribus divisis, lateralibus integris.  ...  Type. Muscicapa ruticilla. Linn.  ...  It represents, in the new world, the Australian genus Rhipidura" (Swainson 1827 (July)); "Setophaga Swainson, 1827 (May), Philos. Mag., new ser., 1, fasc. 5, p. 368. Type, by subsequent designation (Swainson, 1827 (July), Zool. Journ., 3, p. 360), Motacilla ruticilla Linnaeus." (Lowery & Monroe in Peters 1968, XIV, 33). Doubtless time will soften the dismay of birdwatchers caused by the absorption of Dendroica, Parula and Wilsonia into Setophaga.
Var. Cetophaga.   
Synon. Agreocantor, Azuria, Caeruleocantor, Chloris, Chrysocantor, Compsothlypis, Dendroica, Fruticantor, Lineocantor, Maculocantor, Myioctonus, Myiodioctes, Neodendroica, Parula, Perissoglossa, Piceacantor, Pinacantor, Ruticilla, Sylvania, Sylvicola, Sylviocantor, Sylviparus, Terracantor, Vireocantor, Wilsonia.

nigrescens
L. nigrescens, nigrescentis  blackish  < nigrescere  to become black  < niger  black.

SUBSPECIES

Black-throated Gray Warbler (nigrescens)
SCI Name: Setophaga nigrescens nigrescens
nigrescens
L. nigrescens, nigrescentis  blackish  < nigrescere  to become black  < niger  black.

Black-throated Gray Warbler (halseii)
SCI Name: Setophaga nigrescens halseii
halseii
Abraham Halsey (1790-1857) US zoologist, lichenologist, President of New York Lyceum 1825-1833 (subsp. Setophaga nigrescens).