306 BULLETIN 15 3, UNITED STATES NATIONAL MUSEUM 



The three specimens from the Tana River and the female from 

 the Thika River are either immature or subadult. They are not 

 Juvenal birds, however. An extensive series of this race shows that 

 there are three plumages as follows : 



1. Juvenal plumage: In this stage the forehead, crown, occiput, and 

 nape are dark grayish (not blue-gray as in older birds), each feather 

 broadly tipped with whitish giving a barred appearance to these 

 parts; the cheeks and auriculars like the crown; lores whitish; back 

 and rump greenish gray barred broadly with contiguous black-and- 

 white marks; the wings and tail as in adults, except that the outer 

 upper middle and greater wing coverts are terminally banded with 

 yellowish white, then black, and then yellowish white, while in sub- 

 sequent plumages the black band dividing the light margin is want- 

 ing; the entire underparts are light yellowish white (yellowest on 

 the abdomen) finely barred with dusky gray, the bars narrow and 

 close together on the chin and throat, wider and more broadly spaced 

 on the breast, upper abdomen, and flanks, the middle of the belly 

 unbarred. This plumage is replaced by a complete postjuvenal molt, 

 which brings on the next feathering. 



2. Immature plumage: Forehead, crown, occiput, nape, and upper 

 back bluish slate-gray, a whitish loreal line present, but no yellow 

 or greenish on the forehead as in adults ; lower back, rump, and upper 

 tail coverts green as in adults ; wings and tail as in adults, but with 

 the margins of the coverts with a black line as in juvenals; under- 

 parts halfway between the juvenal and adult condition — chin whit- 

 ish, throat, lower breast, and abdomen bright yellow, the upper breast 

 with a pale orange wash ; the breast, upper abdomen, sides, and flanks 

 barred with dusky, the bars more widely spaced than in younger 

 birds. This is finally replaced by the adult plumage. 



3. Adult plumage : Characterized by the absence of any bars on the 

 underparts and the presence of a yellow frontal stripe, yellow super- 

 ciliaries, and a greenish wash on the forehead. 



The breeding season in southern Kenya Colony appears to be un- 

 known ; in north-central Tanganyika Territory it is in December and 

 early in January. 



TELOPHORUS DOHERTYI (Rothschild) 



Laniarius dohertyi Rothschild, Bull. Brit. Orn. Club, vol. 11, p. 52, 1901: 



Kikuyu, Kenya Colony. 

 Specimens collected: 1 male, Escarpment, Kenya Colony, September 8, 1912. 



Soft parts : Bill black, feet and claws gray. 



This beautiful bush-shrike is an inhabitant of the dense mountain 

 forests of western Kenya Colony and of the highlands of the eastern 

 Belgian Congo. It has been taken on the Kikuyu Escarpment at 

 6,500 to 8,000 feet, in the Nyeri-Aberdare Forest at 7,000 feet, on 



