614. Cypselus affinis

614. WHITE-BUMPED Swift.
Cypselus affinis, Gray and Hardw. Ill. Ind. Zool. i. pl. 35, fig. 2 (1832) ; Dresser, iv. p. 591, pl. 267 ; (Hartert), Cat. B. Br. Mus. xvi. p. 453 ; Blanf. F. Brit. Ind. Birds, iii. p. 168 ; C. abyssinicus, Streubel, Ibis, 1848, p. 354 ; C. galilejensis, Antinori Naumannia, 1855, v. p. 307 ; B. caffer (Boie), Isis, 1844, p. 165, partim.
Ababil Babila, Hind. ; Pakoli, Mahr. ; Woehoetaniya, Cing.
ad. (Palestine). Head and neck mouse-brown, paler on the forehead ; back black, glossed with purple ; wings, tail, and tail-coverts dark brown, the first quill and the coverts narrowly margined with white ; rump, chin, and throat white ; under parts blackish brown, glossed with purple ; bill and feet black ; iris dark brown. Culmen 0.28, gape 0.6, wing 5.05, tail 1.64, tarsus 0.32 inch. Sexes alike.
Hab. North-east Africa and west Africa, except Algeria and north of the Atlas range ; south Africa to the Cape ; Palestine and Persia east to India and Ceylon. East of the Bay of Bengal it is replaced by C. subfurcatus Blyth which is darker on the head, upper tail-coverts and tail, the last being longer and more furcated.
In general habits it differs but little from C. apus, but is as a rule a resident and not a migrant ; its flight is rather less powerful, and its note is even shriller than that species. Like it C. affinis feeds on insects which it captures on the wing. It is gregarious and breeds in companies, placing its nest, which is like that of C. apus, in cliff-crannies, houses, and old buildings, depositing from February to August 2 to 4 white glossless eggs which in size average about 0.87 by 0.57, The bird from Tunis has been described by Dr. Reichenow as distinct (Micropus koenigi Rechen, Orn. Monatsb., 1894 p. 192) but, it appears to me, without valid reason.

A Manual Of Palaearctic Birds
Dresser, Henry Eeles. A Manual of Palaearctic Birds. Vol. 1. 1902.
Title in Book: 
614. Cypselus affinis
Book Author: 
H. E. Dresser
Page No: 
Common name: 
White Bumped Swift
Little Swift
Apus affinis
Vol. 1
Term name: 

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