614 Mr. F. J. Jackson on Birds 
is moulting from a blue head into an olive-green one : this 
shews that ('. garruliis has a dull-crowned winter plumage. 
C. loqua.v Licht. is to be added as a synonym of C. gar- 
rulus. — E. B. S.] 
267. EURYSTOMUS AFER. 
Eurystomus afer, var. rufobuccalis E-eichen. J. f. O. 1892, 
p. 27 (Manjongo, Uganda), 
Eurystomus afer (Lath.) ; Reichen. A'og. deutsch. Ost- 
Afr. p. 125^ fig. 58 (1894) ; Hartert, Ansorge's African Sun, 
p. 332 (1899 : Kampala; Kibwesi) ; id. Nov. Zool. vii. p. 33 
(1900: Kilgurma, Uganda) ; Neum. J. f. O. 1900, p. 209; 
Sharpe, Ibis, 1902, p. 109 (Entebbe). 
a. ? ad. Samia, Kavirondo, Nov. 13, 1894. Bill 
yellow ; feet scaly greenish horn-coloured ; iris brown. 
b. ? ad. Kampala, March 20, 1895. 
c. d. (^ $ ad. Kampala, April 2, 1895. 
Nos. 525, 526. S ? ad. Bavine, March 8, 1897. 
These birds are generally found singly or in pairs, w^hen 
they take up some commanding position on a dead tree 
from which they watch for and swoop down on their prey of 
insects, which they take on the wing. They are often noticed 
high up in the air hawking for insects, twisting and turning 
about like a Pratincola. They are very noisy, and invariably 
attack any bird of prey that approaches them. In the 
stomach of the male was a large locust. Insects in others. 
No. 989. c? ad. Nandi, April 15, 1898. 
No. 1213. Nandi, 6500 feet, June 15, 1898. 
a. Juv. ? 
[Two specimens from Nandi are identified by Mr. Oscar 
Neumann as E. rufobuccalis of Beichenow. They are rather 
light cinnamon, and have dull blackish central tail-feathers 
and upper tail-coverts ; the sides of the face shew very 
little lilac gloss. In looking over the large series of skins 
of E. afer in the British Museum, I find considerable varia- 
tion in respect to the brilliancy of the plumage, and the 
darkest birds are from the forest regions ; but it is decidedly 
curious that all the three specimens of E. rufobuccalis as 
