116 BUCEEOTID^ LOPHOCEEOS 



431. Lophoceros erythrorhynchus. Bed-billed Hornbill. 



Le Too, Levaill. Ois. d'Afr. v, p. 122, pi. 238 [Senegal] . 



Buoeroa erythrorhynchus, Temm. PI. Col. ii, sp. 19 (1823) ; Ayres, 

 Ibis, 1869, p. 296 [Limpopo] . 



Tockus erythrorhynchus, Livingstone, Missionary Travels, p. 613 

 (1857) ; Kirh, Ibis, 1864, p. 327 [Zambesi] ; Gurney in Anderason's 

 B. Bamar aland, p. 211 (1872) [in part] ; Buckley, Ibis, 1874, p. 365 

 [Semokwe river] ; Sliarpe, ed. Layard's B. S. Afr. p. 131 (1875) ; 

 ElUot, Monogr. Bucerot. pi. 56 (1878) ; Holub <t PeU. Orn. Sild- 

 Afrihas, p. 141 (1882) ; Ayres, Ibis, 1886, p. 289 [Limpopo] ; 

 Bryden, Gun and Camera, p. 71 (1893). 



Lophoceros erythrorhynchus, Shelley, Ibis, 1888, p. 65 ; Grant, Cat. 

 B. M. xvii, p. 409 (1892) ; Shelley, B. Afr. i, p. 115 (1896) ; Alexan- 

 der, Ibis, 1900, p. 101 (Zambesi). 



" Korwe " of the Bechuanas (Livingstone). 



Description. Male. — Crown of the head dark ashy-grey, lores 

 and eyebrow white with dark shafts ; ear-coverts, sides of the face 

 and neck white edged with grey, nape and a stripe from the nape 

 to the centre of the back white, lower back, tail-coverts, secondaries 

 and wing-coverts brown, the latter with conspicuous white spots at 

 the tips of the feathers ; primaries very dark brown, spotted with 

 white on the inner and outer web except the first two and eighth, 

 which are spotted on the outer web only ; outer secondaries brown 

 with increasing amounts of white on both webs ; central pair of tail- 

 feathers dark brown, second pair black, third and fourth pair with 

 the basal half black the terminal half white, fifth pair white except 

 for a trace of brown at base ; below, including the under wing- and 

 tail-coverts white, throat very thinly covered with feathers showing 

 the bare skin. 



Iris light yellow ; bill with no trace of a casque, red, at the base 

 of the lower mandible black ; naked skin round the eye and on the 

 throat yellow ; legs and feet dark brown. 



Length 18'5 ; wing 7-5 ; tail 8'2 ; culmen 3"6 ; tarsus 1*6. 



The female is slightly smaller and has a shorter bill. 



Distribution. — The Red-billed Hornbill is widely spread over 

 Africa from the Gambia and Abyssinia southwards to the Zambesi ; 

 within our limits it is found in the extreme north of German south- 

 west Africa in Ovampoland, in Matabeleland, the Bechuanaland Pro- 

 tectorate and the western Transvaal and along the Zambesi valley, 

 but not, so far as is now known, in Mashonaland or the eastern 

 Transvaal. 



