Lesser White-fronted Goose

Here the details of the Lesser White-fronted Goose named bird below:

SCI Name:  Anser erythropus
Protonym:  Anas erythropus Syst.Nat.ed.10 p.123
Taxonomy:  Anseriformes / Anatidae / Anser
Taxonomy Code:  lwfgoo
Type Locality:  Restricted type locality. North Sweden. Lonnberg, Ibis, 1913, p. 401-402.
Author:  Linnaeus
Publish Year:  1758
IUCN Status:  Vulnerable

DEFINITIONS

ANSER
(Anatidae; Ϯ Grey-lag Goose A. anser) L. anser, anseris  goose; the Grey-lag Goose is the wild ancestor of European domestic geese, the Swan Goose A. cygnoides having played the same rôle for Chinese domestic geese; "Anser. Genus 106.  ...  Genus Anserinum.  Genre de l'Oye.  ... Tous les Oiseaux de ce genre ont une petite membrane tout le long du côté intérieur du doigt intérieur. Ils ont aussi la partie inférieure des jambes dégarnie de plumes.   ...   **1. L'OYE DOMESTIQUE.  Anser versicolor . . .ANSER DOMESTICUS." (Brisson 1760): based on numerous descriptions of domestic and wild geese, including "Anser domesticus" and "Anser ferus" of Gessner 1555, "Anser vulgaris" of Linnaeus 1748, and Anser ferus Linnaeus, 1758; "Anser Brisson, Orn., 1, 1760, p. 58. Type, by tautonymy, Anser domesticus = Anser anser Linné." (Peters, 1931, I, p. 146).   
Synon. Chen, Chionochen, Cygnopsis, Eulabeia, Exanthemops, Marilochen, Melanonyx, Philacte, Sarcopogon.

anser
L. anser, anseris  goose; "61. ANAS.  ...  Anser.  7. A. rostro semicylindrico, corpore supra cinereo subtus pallidiore, collo striato. Fn. svec. 90.   α. Anser ferus. Gesn. av. 158. Aldr. orn. l. 19. c. 18. Will. orn. 274. t. 69. Raj. av. 136.   β. Anser domesticus. Gesn. av. 141. Will. orn. 273. t. 75. Raj. av. 136.   γ. Anser canadensis fuscus maculatus. Edw. av. 153. t. 153.  Habitat in Europa & America maxime boreali.  Collum striatum. Annulus albus ad basin rostri in spontaneo; migrat per phalanges; filo arcetur. Mas 1 feminis 4; inde Pennæ, Plumæ, Anser durateus, Jus spartanum, Jecur sicatum." (Linnaeus 1758) (Anser).

erythropus
Gr. ερυθροπους eruthropous, ερυθροποδος eruthropodos  red-footed  < ερυθρος eruthros  red; πους pous, ποδος podos  foot.
● "61. ANAS.  ...  erythropus.  8. A. cinerea, fronte alba. Fn. svec. 92.  Anser helsingicus. Clus. exot. 368.  Habitat in Europa septentrionali." (Linnaeus 1758); “Hartert [et al., 1912] ...uses the name Anser finmarchicus Gunnerus, 1767, for the Lesser White-fronted Goose, as he states that Anas erythropus, Linn., 1758, is not determinable; recently Lönnberg (Ibis, 1913, p. 400) has given very good reasons for fixing Linnaeus’ name on the Lesser White-fronted Goose, which breeds in northern Sweden, while the larger form, Anser albifrons, never does so” (BOU 1915) (Anser).
● ex “Ardea haematopus” or “Cirris” of Willughby 1676, and Ray 1713, “Cancrophagus rufus” of Brisson 1760, “Crabier roux marron” of de Buffon 1770-1784, and “Red-legged Heron” of Latham 1785 (syn. Ardeola ralloides).
● ex “Red-legged Gull” of Pennant 1785, and “Brown-headed Gull” of Latham 1785 (syn. Chroicocephalus ridibundus).
● ex “White-backed Coly” of Latham 1783 (syn. Colius colius).

Erythropus
Gr. ερυθροπους eruthropous, ερυθροποδος eruthropodos  red-footed   < ερυθρος eruthros  red; πους pous, ποδος podos  foot.
• (Phasianidae; syn. Alectoris † Red-legged Partridge A. rufa) "So, also, on the Continent, the common red-legged partridge (Erythropus vulgaris) is the colour of the gravelly and sandy soils on which it is found" (Blyth 1835); "Two of the Redfoot, (Erythropus Gallicus), or Red Partridge of ordinary parlance, occupy the next plate, and are well figured" (Blyth 1836); "Erythropus Blyth, 1835, in Loudon (ed.), Mag. Nat. Hist and Journ. Zool, VIII, (art. IV), p. 51.  Type, by monotypy, Erythropus vulgaris Blyth, 1835 = Tetrao rufus Linnaeus, 1758." (JAJ 2021).
• (Falconidae; syn. Falco † Red-footed Falcon F. vespertinus) "XIII. G.  Rothfußfalke, Erythropus Br.   Der blaugraue Rothfußfalke, E. vespertinus Br." (Brehm 1828); "Erythropus Brehm, Isis, 1828, col. 1270.  Type, by monotypy, E. vespertinus Br. = Falco vespertinus Linn." (W. Sclater, 1924, Syst. Av. Aethiop., I, p. 52).