Cypsellus melba, Lin.
98. :- Jerdon's Birds of India, Vol. I, p. 175 ; Butler, Deccan ; Stray Feathers, Vol. IX, p. 379 ; Guzerat, Stray Feathers, Vol. III, p. 453 ; Murray's Vertebrate Zoology of Sind, p. 104.
THE ALPINE SWIFT.
Length, 9 ; expanse, 19.5; wing, 8.5 ; tail (moderately forked) 3.
Bill blackish; irides deep-brown; legs and toes livid-purple.
Above wood-brown, glossed with purple on the back; wings somewhat darker; beneath the chin, throat, and abdomen white ; a wide pectoral band brown ; sides of the rump, tarsal plumes, and under tail-coverts also brown.
The Alpine Swift only occurs as a somewhat rare cold weather visitant to most parts of the region, but is rather more common in the more hilly districts.