Collared Forest-Falcon

SCI Name:  Micrastur semitorquatus
Protonym:  Sparvius semi-torquatus Nouv.Dict.Hist.Nat. 10 p.322
Taxonomy:  Falconiformes / Falconidae / Micrastur
Taxonomy Code:  coffal1
Type Locality:  Paraguay.
Author:  Vieillot
Publish Year:  1817
IUCN Status:  Least Concern

DEFINITIONS

MICRASTUR
(Falconidae; Ϯ Collared Forest Falcon M. semitorquatus) Gr. μικρος mikros  little, short; genus Astur de Lacépède, 1799, goshawk; "MICRASTUR, G. R. Gray (1841).  Brachypterus^c, Less. (1837).  Astur, Spix.   M. brachypterus, (Temm.) G. R. Gray, Pl. col. 141.  F. concentricus, Ill.   ...   ^cPreviously used ending in yx." (G. Gray 1841); "Micrastur G. R. Gray, List Gen. Bds., 1841, p. 6. Type, by original designation, Falco brachypterus Temminck = Sparvius semitorquatus Vieillot." (Peters 1931, 1, 276) (see Brachypterus).
Var. Micraster.
Synon. Brachypterus, Carnifex, Clamosocircus, Climacocercus, Nothierax, Rhyncomegas, Thrasyaccipiter.

semitorquata / semitorquatus
Mod. L. semitorquatus  half-collared  < L. semi-  half-, semi-, small  < semis, semissis  half  < as, assis  whole; torquatus  collared  < torques  collar  < torquere  to twist.
● ex “Héoro-taire à collier blanc” of Audebert & Vieillot 1802 (syn. Acanthorhynchus tenuirostris).
● ex “Petit Engoulevent tacheté de Cayenne” of d’Aubenton 1765-1781, pl. 734, and de Buffon 1770-1783, and “White-collared Goatsucker” of Latham 1783 (Lurocalis).
● ex “Esparvero faxado” (= ☼) of de Azara 1802-1805, no. 19 (Micrastur).
● ex “Figuier à demi-collier” of de Buffon 1770-1783, and “Half-collared Warbler” of Latham 1783 and Pennant 1785 (unident.).

SUBSPECIES

Collared Forest-Falcon (naso)
SCI Name: Micrastur semitorquatus naso
naso
L. naso, nasonis  large-nosed  < nasus  nose.

Collared Forest-Falcon (semitorquatus)
SCI Name: Micrastur semitorquatus semitorquatus
semitorquata / semitorquatus
Mod. L. semitorquatus  half-collared  < L. semi-  half-, semi-, small  < semis, semissis  half  < as, assis  whole; torquatus  collared  < torques  collar  < torquere  to twist.
● ex “Héoro-taire à collier blanc” of Audebert & Vieillot 1802 (syn. Acanthorhynchus tenuirostris).
● ex “Petit Engoulevent tacheté de Cayenne” of d’Aubenton 1765-1781, pl. 734, and de Buffon 1770-1783, and “White-collared Goatsucker” of Latham 1783 (Lurocalis).
● ex “Esparvero faxado” (= ☼) of de Azara 1802-1805, no. 19 (Micrastur).
● ex “Figuier à demi-collier” of de Buffon 1770-1783, and “Half-collared Warbler” of Latham 1783 and Pennant 1785 (unident.).