527 
Birds of Southern Cameroon. 
I believe now that the peculiar noise of the different species 
of Smithornis is made with the voice, as Mr. Swynnerton 
thought ( e Ibis,’ 1908, p. 92) and not with the wings. It is a 
call to attract the mate, and probably made by the male 
alone. It is made only while the bird is taking short 
circular flights, and at the same time displaying the white 
feathers of its back. 
Smithornis rufolateralis. [Mbamezok.] 
Sharpe, Ibis, 1904, p. 627 ; 1907, p. 452. 
No nest of the smaller forest Mbamezok has been recorded 
before. One (brought in with the sitting female bird, 
No. 4407) was like the nests of other species of the genus, 
and was made of materials obtained in the forest. The two 
fresh eggs (answering to the two empty sheaths found in 
the bird’s ovary) were pure white with glossy and rather thin 
shells, and measure 23 X 15■ 5 and 22 x 16 mm. 
Smithornis sharpii. [Mbamezok.] 
Alexander, Bull. B. O. C. 1903, p. 34 ; Grant, Trans. 
Zool. Soc. vol. xix. p. 402. 
Smithornis zenkeri Bates, Ibis, 1905, p. 27; 1909, p, 31. 
The date of the original description by Alexander was 
Jan. 1903 (not 1902); but still his name has the pre¬ 
cedence over that given by Reichenow and published in 
March 1903. 
Another nest and eggs have been found and brought to 
me with the bird still alive, caught at evening in the nest. 
The fabric was made of fine black fibres and dried leaves, 
such as would be obtained in the forest, not on cleared land. 
The two pure white eggs measure respectively 24’5 x 17 and 
22 x 16*5 mm. 
Hyliota violacea. 
Sharpe, Ibis, 1904, p. 625. 
Nos. 1762, $ ; 1763, $ young. Bitye, June 1906. 
No. 2169, $ • Bitye, Jan. 1907. 
The male is exactly like the bird obtained at Efulen in 
1902. The adult female has the upper parts like the male, 
though with less lustre, and the white spots on the wing- 
