ig2i.] collected in Southern, Cameroon. 95 



throat and cliiu and is barred with black; the underparts 

 are almost white, barred with black — giving the birds a much 

 ligliter appearance than C.jacksoiii. with which it miglit at 

 first sight have been confnsed. 



1 have one remarkable bird entirely black, ])nt with several 

 barred feathers still remaining in the breast and flanks — the 

 barred feathers are fresli feathers, the black much Morn, 

 showing that the bird is changing from black plumage (?) of 

 the young into the barred plumage. It is impossible to 

 determine whether it is a young jacksoni or mahirce. I am 

 inclined to think the latter, as the feathers of tiie young o£ 

 gabonensis are entirely black and in the adult become barred. 

 This I believe to be a parallel case, but it is worthy of 

 study by anyone working at this group. The specimen 

 alluded to is a male obtained by Mr. L. M. Seth-Smith at 

 Mpumu, Uganda, on the 28th of July, 1912, Brit. Mus. 

 Reg. No. 1913.7.1G.31. 



At first I believed that this was C. jacksoni turning into a 

 black bird, but on closer examination along with Mr. H. F. 

 Witherby of the feathers, he drew my attention to the fact 

 that the barred feathers were new, the black feathers old, 

 and in these conclusions I agree. The young of either 

 ('.jacksoni or C. mabircs are therefore black. It is not an 

 example of C. cUuaosus. 



The range of this Cuckoo is not yet known apparently. 

 The type came from the Kasala Forest and the other 

 specimens from Mabira and Bngoma in Uganda. There 

 are three birds in the Jackson collection from the Mabira 

 and Bugoma Foi^ests. The subspecies is not re[)resentcd in 

 the British Museum. 



Pachycoccyx validus. 



Cucutus validus Keichw. Orn. Centralbl, 1879, p. 139 — 

 Type locality: Muniuni, Tana River, British East Africa. 



Pachycoccyx validus Sharpe, Ibis, 1907, p. ^35 ; Bates, 

 Ibis, 1911, p. 499. 



Two specimens of this rare Cuckoo were obtained 

 (Nos. 5939 and 4220), and have been presented to the British 



