1074. Cypselus subfurcatus.
The Malay House-Swift.
Cypselus subfurcatus, Blyth, J. A. S. B. xviii, p. 807 (1849); id. Cat. p. 85; Sclater, P. Z. S. 1865, p. 602 ; Blyth, Ibis, 1865, p. 41, note ; 1870, p. 161; Godw.-Aust. J. A. S. B. xliii, pt. 2, p. 153 ; Hume, S. F. ii, p. 524 ; xi, p. 30; id. Cat. no. 100 bis ; Hume & Inyglis, S. F. v, p. 17; Hume & Dav. S. F. vi, p. 47; Oates, B. B. ii, p. 2. Micropus subfurcatus, Hartert, Cat. B. M. xvi, p. 456.
Very similar to C. qffinis, but darker, being blackish brown except on the white rump, chin, and throat; head, and especially the under tail-coverts, blackish brown like the other parts, only the forehead paler; tail longer and distinctly subfurcate or emarginate.
Bill black; irides dark brown ; legs and feet varying from deep purplish black to flesh-colour.
Length about 5.75 inches; tail 2; wing 5.5; tarsus .4; outer rectrices .3 longer than middle pair.
Distribution. Cachar and the Khasi hills, not rare; Manipur, and here and there throughout Burma, but very few localities are recorded; China as far north as Amoy, Cochin China, doubtless Siam, the Malay Peninsula, Sumatra, and Java. This Swift abounds in Penang. A single specimen from Chanda was found by Hume in the Calcutta collection: this was doubtless a straggler.
Habits, &c. similar to those of C. affinis. Godwin-Austen found this Swift breeding on cliffs near Shillong in June.