500 
Mr. G. L. Bates on the 
different kinds, but there were no caterpillars, or caterpillar- 
hairs sticking to the lining of the stomach. The last bird, 
while having white spots in the plumage, was not very young, 
and must have caught these insects itself. 
CuCULUS CANORUS. 
Reichenow, V. A. ii. p. 89. 
No. 3623. $ somewhat imm. Bitye, Apr. 22, 1909. 
No. 4153. ? young. Bitye, Oct. 29, 1910. 
CUCULUS SOLITARIUS. 
Sharpe, Ibis, 1904, p. 613 ; 1907, p. 435. 
No. 4330. <$ ad. No. 3816. $ ad. Bitye, R. Ja. 
Nos. 3921, 4021, young; 4216, young, with the plumage 
not grown. 
These three young birds, with one like them, No. 1139, 
identified by Sharpe as C. gabonensis (‘ Ibis/ 1907, p. 436), 
1 believe to be the young of C. solitarius, mainly because 
they are not at all like the young of G. gabonensis described 
below. Moreover, younger birds of C. solitarius collected 
by the Ruwenzori Expedition (cf. Grant, Trans. Zool. Soc. 
xix. p. 424) seem to have resembled them, and so does a 
specimen in the British Museum from Fantee. They have 
white edges on all the black feathers and a white spot on 
the back of the head; thus agreeing exactly with Reiche- 
now’s description of the young of C. gabonensis , which, as 
will appear below, they cannot be. I can only suppose that, 
like Sharpe, Reichenow has mistaken for that species the 
young of C. solitarius , especially as he seems to suppose 
that the latter species is not found in Cameroon. 
Nos. 3921, 4024, and 4216 have the feet yellow; No. 4216, 
a very young bird, had the inside of the mouth and the 
tongue uniform deep orange. 
CuCULUS GABONENSIS. (Text-fig. 13.) 
Sharpe, Ibis, 1907, p. 436. 
Cuculus clamosus Sharpe, Ibis, 1904, p. 614. 
Cuculus aurivillii Sjostedt, K. Sv. Vet.-Akad. Handl. 
xxvii. p. 47 (1895). 
I have a series of eight specimens, all collected at Bitye 
