Gray-headed Imperial-Pigeon

Here the details of the Gray-headed Imperial-Pigeon named bird below:

SCI Name:  Ducula radiata
Protonym:  Columba radiata Voy.AstrolabeZool. 1 p.245
Taxonomy:  Columbiformes / Columbidae / Ducula
Taxonomy Code:  gyhimp1
Type Locality:  Menado, Celebes.
Author:  Quoy & Gaimard
Publish Year:  1830
IUCN Status:  Least Concern

DEFINITIONS

DUCULA
(Columbidae; Ϯ Mountain Imperial Pigeon D. badia insignis) Nepalese name Dukul for the imperial pigeons (cf. Hindi names Dunkul and Doomkul); "Genus or Sub-genus — DUCULA nobis. — DUKUL OF THE NIPALESE (genericé)    Character of the genus:—bill equal to the head, straight, cylindric, very feeble; both mandibles membranous for three-fourths from the gape; tip of the upper mandible gently inclined—of the lower, strongly compressed; nares broad, linear, obliquely transverse, central; their groove faint; their tect subtumid.  Wings short, not rounded, 3, 4, 5 quills sub-equal and longest; central primaries with their tips wavily truncated.  Tail 14, long, strong and square; tarsi very low, and plumed nearly to the toes laterally, less in front; toes depressed with broad flat soles; lateral fores sub-equal, hind large; nails strong, arched and acuminated; central and hind equal, lateral fores equal, less; orbits nude; plumage simple.  The above is a tedious charcater, but it is a distinct one. Those who love more summary proceedings may perhaps approve the following: "Bill and wings as in Goura; legs and feet as in Vinago."  ...  Lastly, though Ducula, like Vinago, be exclusively arboreal and fruit-eating; the latter is eminently gregarious—the former, almost a solitary.   Species new. DUCULA INSIGNIS. Great Ducula, nobis." (Hodgson 1836); "Ducula Hodgson, As. Res., 19, 1836, p. 160. Type, by monotypy, Ducula insignis Hodgson." (Peters, 1937, III, p. 42).   
Synon. Carpophaga, Carpophagella, Compsoenas, Globicera, Lamprura, Muscadivora, Muscadivores, Myriphaga, Myristicivora, Phaenorhina, Pterocolpa, Ptilocolpa, Rinopus, Serresius, Zonoenas, Zonophaps.

radiata / radiatum / radiatus
L. radiatus furnished with rays (i.e. barred) < radius spoke, rod, ray.
● ex “Radiated Falcon” of Latham 1801 (Erythrotriorchis).
● ex “Coucou brun et jaune à ventre rayé” of de Buffon 1770-1783, “Coucou à ventre rayé de l’île de Panay” of Sonnerat 1776, and “Panayan Cuckow” of Latham 1782 (syn. Hierococcyx sparverioides).
● ex “Autour gris à ventre rayé de Madagascar” of Sonnerat 1782 (Polyboroides).
● ex “Batara listado” of de Azara 1802-1805, no. 212 (subsp. Thamnophilus doliatus).
● ex “Aldrovandus brasilian Merula” of Willughby 1676, “Merula bicolor Aldrovandi” of Ray 1713, “Oriolus capite striato” of Brisson 1760, “Loriot à tête rayée” of de Buffon 1770-1783, and “Striped-headed Oriole” of Latham 1782 (unident.).