94. BIRDS OF SOUTH AFRICA. 
The distinguishing characters of this species are its white rump 
and forked tail. The general colour is blucish-black, the wings and 
tail glossy brown, as also is the head, the forehead being still paler: 
throat white. Total length, 8°75 inches ; wing, 57; tail, 3:0. 
Fig. Temm. Pl. Col. 460, fig. 1. 
89. CypsELUS AFFINIs. White-rumped Swift. 
This is a well-known Indian species, and is found in North-Eastern 
and in Western Africa, being very plentiful on the Gold Coast, but 
it is only recently that it has been discovered in South Africa. Mr. 
Dresser in his account of the species mentions that it has “occurred 
as far south as the Cape of Good Hope, according to Dr. Sclater and 
Dr. Finsch,” but he does not appear to have seen a specimen. One 
is, however, duly recorded in the editor’s ‘ Catalogue of Birds’ (p. 2) 
on our authority, and is to be seen in the British Museum. This 
specimen was procured by our excellent correspondent, Mr. H. 
Jackson, of Nel’s Poort, to whom the credit of the rediscovery of 
this species in South Africa is due. He wrote to us saying that he 
had found an apparently new species of Swift, differing from C. 
caffer in their breeding habits and making their own nests in clusters, 
fixed to the rocks and composed of feathers agglutinated together. 
Of course a proceeding so different to the ordinary habits of 0. 
cajfer convinced us that it could not be that species, and the receipt 
of specimens proved it to be C. afjinis. 
The present bird may be described as similar to O. caffer and 
possessing a white rump like that species, but distinguishable at 
once by its square tail. Total length, 4°5 inches ; wing, 5:0; tail, 1:8. 
Trig. Dresser, B. Eur. part x xxiii. 
90. CyYPpsELUS PARVUS. Little African Swift. 
Cotyle ambrosiacea, Layard, B. 8. Afr. p. 59. 
This little Swift is found all over Africa, being especially plentiful 
on the Gold. Coast: the specimens which we have seen from S. 
Africa were much lighter in colour than those from other localities. 
It may be distinguished from the other South African Swifts by its 
small size and long, forked, tail. We have never seen it from the 
Colony, but it was found to be “pretty common at Ondonga” by 
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