to ' The Bii-ds of India.' 355 



6i inches to 6|-, I have frequently seen this Swift in the North- 

 west Himalayas, generally in the interior. It occupies in summer 

 the ranges of hills between the outer ranges, where C. affinis is 

 abundant, and the higher and more interior hills occupied by C. 

 apus. 



101 bis. Cypselus pacificus. 



Cypselus vittatus, Jard. 111. Orn. 



I found this Swift flying over hills in Upper Assam, and also 

 in Cachar, and observed apparently the same bird at Shillong 

 on the Khasia hills in large flocks towards the end of the rains. 



101 ter. Cypselus acuticauda, Blyth. 



I have examined the type of this species in the Derby Mu- 

 seum at Liverpool. It corresponds very closely with C. pacificus, 

 rather than with C. leuconyx, to which Blyth compares it. It in 

 fact chiefly diff'ers in the total absence of the white rump ; the 

 lower parts are banded just as in that species I can find no 

 drawing of this bird in Hodgson's drawings, though the speci- 

 men bears his label. The dimensions are as follows : — Length 

 about 7| inches, wing 7|, expanse 21. 



102. Cypselus infumatus. (Plate X.) 



Cypselus infumatus, Sclater, P. Z. S. 1865, p. 602. 



Cypselus f.inus, Swinhoe, Ibis, 1870, p. 90. 



C. tectorum, Jerdon, Proc. As. Soc. Calcutta, 1870, p. 71; 

 Godwin- Austen, Cat. Birds in Journ. As. Soc, 1870, p. 94. 



The Palm-roof Swift. 



Major Godwin -Austen procured this interesting Swift on the 

 Naga hills, and subsequently on the Garo hills, where it had 

 also been obtained by a native collector employed by Dr. An- 

 derson. The Garo hills are a direct continuation of the Naga 

 hills, the Khasia and Jynteea hills, however, intervening, where 

 this Swift is not known. The more highly civilized Khasi race 

 have better houses than their neighbours on each side, who 

 use huts thatched with palm-leaves. On these roofs this Palm- 

 swift invariably builds its nest. 



Mr. Hume, who saw the specimen I was taking home, subse- 

 quently identified it, doubtfully, with Sclater's C. infumatus; and 

 on comparison of the unique specimen existing in England of 



