689 
Birds from British East Africa. 
47. Lanius humeralis Stanl. 
Lanius humeralis Grant, Nov. Zool. ix. p. 466; Reich, ii. 
p. 609. 
a. [ ? .] Kikuyu Forest, 29th June, 1902. (No. 333.) 
The only example of this Shrike obtained by Mr. Percival 
is a female in very worn plumage. The under parts are 
strongly tinged with smoky brown and the tail is in a very 
worn condition, but the broad white tips to the outer tail- 
feathers seem to distinguish this species from Lanius smithi 
Fraser. 
[This is the commonest Shrike here ; it breeds in the 
thick thorn bushes.— A. B. P.] 
48. Lanius collurio Linn. 
Lanius collurio Grant, Nov. Zool. ix. p. 471 ; Reich, ii. 
p. 622. 
a. J. Takaungu, April 1901. (No. 167.) 
This specimen has the back very dark chestnut. 
[A few only were seen before March, but during that 
month they became numerous on their migration northwards. 
At Nairobi from the middle of March to the beginning 
of May they were common. The last one was seen on 
May 20th.— A. B. P.] 
49. Laniarius quadricolor Cassin. 
Laniarius quadricolor Cassin, Pr. Ac. Philad. 1851, p. 245. 
Chlorophoneus quadricolor Reich, ii. p. 566. 
a. Ad. Malindi, 28th Feb., 1901. (No. 124.) 
b. Ad. Takaungu, 15th March, 1901. (No. 123.) 
In the adult male the basal portion of the central tail- 
feathers is olive-green, the remainder being black, but the 
bases of the outer webs of the outer tail-feathers are strongly 
washed with olive-green. 
The adult female differs from the male in having the tail- 
feathers entirely green and in lacking the broad black band 
across the chest, which is indicated only by a few of the 
feathers being narrowly tipped with black. 
An apparently immature female in the British Museum has 
the throat yellow and only the tips of the feathers scarlet 
