BIEDS OF ETHIOPIA AND KENYA COLONY 417 



LOPHOCEROS FLAVIROSTRIS FLAVIROSTRIS (Ruppell) 



Buceros flavirostris Kuppell, N. Wirbelth., Vog., p. 6, pi. 2, 1835: Taranta 

 Mountains, Ethiopia. 



SpecimeTis collected: 



One male and two females, Tollo, Ethiopia, December 16, 1911. 



Three males and two females, Sadi Malka, Ethiopia, January 30, 

 to February 3, 1912. 



One female, Hawash River, Ethiopia, February 10, 1912. 



One female, Tertale, Ethiopia, June 9, 1912. 



One male and one female, Hor, Kenya Colony, June 28-29, 1912. 



One female, 18 miles southwest of Hor, Kenya Colony, July 1, 1912. 



One male, immature. Lake Rudolf, southeast, Kenya Colony, July 

 10, 1912. 



One female, Nyiro Mountain., Indunumara Mountains, Kenya 

 Colony, July 14, 1912. 



One female, immature. Spring in Indunumara Mountains, Kenya 

 Colony, July 17, 1912. 



One male and two females, Endoto Mountains, south, Kenya 

 Colony, July 22-24, 1912. 



One female, Le-se-dun, Kenya Colony, July 26, 1912. 



Soft parts : iris, yellow ; bill, yellow with a reddish-brown commis- 

 sural band; feet, black anteriorly, whitish posteriorly; bare skin on 

 throat black in females, flesh color in males. The amount of reddish 

 brown on the bill is variable and purely individual in its fluctuations. 



Sclater ^^ recognizes four races of the yellow-beaked hornbill, but 

 after a study of the literature and of a series of some 25 birds, I have 

 come to the conclusion that one of these, somaUen^is, is not valid and 

 is to be considered the same as the typical form. The three races 

 that I admit are as follows : 



1. L. f. flavirostris. — Eritrea, Danakil-land, Ethiopia, and Somali- 

 land, south through Jubaland and eastern Kenya Colony to the 

 Kilimanjaro district. 



The form somaliensis was described by Reichenow ^- on the basis of 

 slightly smaller size and the mandible being reddish in color. 

 Zedlitz ^2 and Erlanger ^* both either overlooked Reichenow's form 

 or considered it the same as typical Ethiopian birds, but neither 

 makes any mention of somaliensis either by name or by inference. 

 Both, however, consider Somaliland birds the same as Ethiopian 



" Syst. Avium Ethiop., 1924, pp. 227-228. 

 "-Journ. f. Ornith., 1894, p. 96. 

 •"Idem, 1915, p. 25. 

 «Idem, 1905, p. 444. 



