306 Mr. Boyd Alexander on the 



Locally distributed in wooded localities, where the ground 

 is inclined to be swampy. It keeps much to the under- 

 growth, travelling with a gliding flight from one twig to 

 another. The note uttered is a noisy " tizz." 



Ad. <?. (Lakha, Nov. 8, 1902.) 



Head dark brown and slightly ashy, back and mantle reddish 

 brown washed with olive, becoming more rufous on the 

 rump and ferruginous on the upper tail-coverts. Forehead, 

 lores, ear-coverts, and sides of head ashy grey. Wing- 

 coverts like the back ; quills and secondaries fulvous brown, 

 margined with the same colour as the back. Tail-feathers 

 dark rufous brown edged with rufous. Throat and middle of 

 abdomen white ; chest, sides, and flanks strongly washed 

 with dark olive-brown ; under tail-coverts more fulvous 

 brown ; thighs brownish grey. Iris brown ; upper man- 

 dible black, lower dark greenish horn-coloured ; legs and 

 feet slate-coloured. Total length 5'5 inches, culmen 75, 

 wing 3, tail 2"1, tarsus 10. 



The following specimens of T. fulvescens, with which our 

 birds are identical, are in the Brit. Mus. : — 



a. Ad. 6 • Bio Benito, French Congo (G. L. Bates). 



b. Ad. $. Efulen, Cameroon (G. L. Bates). 



c. Ad. 2' Efulen, Cameroon (G. L. Bates). 



d. Imm. Bio Camma, Gaboon (Du Chaillu). Co-type. 



e. Imm. West Africa (Du Chaillu). Co-type. 



/. Nestling. Bio Camma, Gaboon (Du Chaillu). Type 

 of T. rufipennis. 



It will be seen that Cassin's original description of 

 T. fulvescens was taken from the immature bird. 



Our immature specimens differ from the adults in being 

 smaller and in having the upper parts more rufescent brown, 

 which becomes almost clear ferruginous on the rump and 

 upper tail-coverts; wing-coverts and quills edged with rufous; 

 under tail-coverts reddish-chestnut. In several of the more 

 mature specimens this rufous coloration is giving way to the 

 more olive-brown of the adult. 



In the nestling stage the rufous coloration of the upper 

 parts, especially of the wings and upper tail-coverts, is much 



