493 Dr. S. L. Hinde on 



visited on July 15th, we observed a large Diver/which was 

 thought to belong to this species. The difference in the size 

 of this bird and two Black-throated Divers swimming near 

 it at the same time was remarkable. Its bill was certainly 

 black, and therefore the bird could not have been C. adamsi. 

 Pleske says that MiddendorfF shot a specimen of C. (jlacialis 

 near the mouth of the Kola Fjord, in September 1840. 



COLYMBUS ARCTICUS. 

 COLYMBUS SEPTENTRIONALIS. 



The Black-throated and Red-throated Divers were perhaps 

 equally common on the small lakes from Kandalax to Eka- 

 terina. A Red-throated Diver shot near Ekaterina from 

 fresh eggs on August 1st proved to be a male, and although 

 we hid up near the nest for several hours in the hope of 

 getting the mate, she never came back to the nest, and only 

 once flew anywhere near us. 



[Pleske records a few examples of Podidpes yriseigena 

 from near Kandalax.] 



XXVIII. — On further Collections of British-East- African 

 Birds. By Sydney L. Hinde, M.D. With Notes by 

 R. BowDLER Sharpe, LL.D. 



Since my return to British East Africa I have been stationed 

 in Masailand, either at N'gong, or Nairobi, or out on the 

 neighbouring plains. In these localities I have met with 

 examples of a few species to be added to my former list of 

 the birds of Machako's (c/. Ibis, 1898, p. 576). 



The neighbourhood of N^gongo Bagas is hilly, dense bush 

 and open grassland alternating. The station is about 6000 

 feet above the sea-level. The Athi river, where some of the 

 birds were obtained, crosses a bare plain, and the nearest 

 bush-country or forest is about 20 miles away ; patches of 

 mimosa and occasional fig-trees and rank grass grow on the 

 river-banks. 



1. Perissorms caruxculatus (Vieill.). 

 Dilophas cariuiculatus Hinde, Ibis, 1898, p. 576. 



