492 
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. glacialis 
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 Podicipes griseigena 
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 (cf. 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. Perissornis carunculatus (Vieill.). 
Dilophus carunculatus Hinde, Ibis, 1898, p. 576. 
