Eastern Yellow-billed Hornbill

Here the details of the Eastern Yellow-billed Hornbill named bird below:

SCI Name:  Tockus flavirostris
Protonym:  Buceros flavirostris NeueWirbelth.Vog. p.6 pl.2 fig.2
Taxonomy:  Bucerotiformes / Bucerotidae / Tockus
Taxonomy Code:  eybhor1
Type Locality:  Valleys at the base of the Taranta Mountains, near Massawa, Ethiopia.
Author:  Rüppell
Publish Year:  1835
IUCN Status:  Least Concern

DEFINITIONS

TOCKUS
(Bucerotidae; Ϯ Red-billed Hornbill T. erythrorhynchus) "Les nègres du Sénégal lui ont donné le nom de tock, & nous avons cru devoir de lui conserver" (de Buffon 1770-1783) (cf. "Buceros galeatus [= Rhinoplax vigil] ... This species is called Toko ...  in Sumatra" (Raffles 1822)); "Sous-genre. TOCK; Tockus.  Bec recourbé, élevé, très-comprimé, à arête vive, à bords lisses et dentelés.   1. CALAO TOCK; Buceros erythrorhynchus, Briss., pl. 46, fig. 2. Enl., 260; Levaill., pl. 238; Buceros nasutus, Var. B.  ...  Habite le Sénégal" (Lesson 1830); "Tockus Lesson, Traité d'Orn., livr. 4, 1830, p. 252. Type, by subsequent designation, Buceros erythrorhynchus Brisson i.e. Temminck. (G. R. Gray, List Gen. Bds., 1840, p. 50.)" (Peters 1945, V, 254).
Var. Toccus, Tocus (variant French name "Toc"), Poccus.
Synon. Alophius, Nototockus, Xanthorhynchus.

flavirostre / flavirostris
L. flavus  yellow, golden-yellow; -rostris  -billed  < rostrum  beak.
● ex “Pato pico amarillo y negro” of de Azara 1802-1805, no. 439 (Anas).
● "98. FRINGILLA.  ...  flavirostris.  21. F. fusca, rostro flavicante. Faun. svec. 204.  Habitat in Europa." (Linnaeus 1758) (Linaria).
● ex “Favorite de Cayenne” of d’Aubenton 1765-1781, pl. 897, “Favorite” of de Buffon 1770-1783, and “Favourite Gallinule” of Latham 1785 (Porphyrio).