HIRUNDININyE. 83 



Cotyle (Ptyonoprogne) concolor, Sykes. 



90. Jerdon's Birds of India, Vol. I, p. 165 ; Butler, Guzerat ; 

 Stray Feathers, Vol. Ill, p. 453 ; Deccan, Stray Feathers, Vol. 

 IX, p. 378 ; Swinhoe and Barnes, Central India ; Ibis, 1885, 

 p 60. 



THE DUSKY CRAG MARTIN. 



Length, 4'6 ; wing, 4 ; tail, 2. 



Smoky brown, slightly paler, and with a reddish tinge beneath ; 

 a round white spot on the inner webs of all the tail-feathers, 

 except the centre and outer pairs ; the tail is nearly square. 



The Dusky Crag Martin, with the exception of Sind, occurs 

 more or less abundantly throughout our limits. It is somewhat 

 solitary in its habits, rarely more than a single pair nesting in the 

 same vicinity. They have apparently two broods in the year, and 

 lay at different seasons in different parts of the country, but from 

 January to March, and July to September, are perhaps the best 

 months to search for eggs. Its nest, affixed to projecting eaves 

 or ledges of rock, is very like that of H. filifera, but is smaller, 

 more cup-shaped, and pointed at the bottom, but, like it, is well 

 lined with feathers ; the eggs, three or four in number, are white 

 with numerous spots and specks of various shades of yellowish or 

 reddish-brown, but these markings are neither so bright, or so 

 bold, as those of the Wire-tailed Swallow ; they average 072 

 in length by 0'52 in breadth. 



Cotyle (Ptyonoprogne) rupestris, Scop. 



91. Jerdon's Birds of India, Vol. I, p. 166 ; Butler, Guzerat ; 

 Stray Feathers, Vol. III. p. 456 ; Deccan, Stray Feathers, Vol. 

 IX, p. 378. 



THE MOUNTAIN CRAG MARTIN. 



Length, 5'25 ; expanse, 14*5 ; wing, 5*5 ; tail, 2*4 ; tail nearly 

 square. 



Bill black ; legs light reddish-brown. 



Above, pale ashy-brown, darker on the quills and tail ; throat 

 and breast rufous-white ; abdomen rufous-ashy ; under tail-coverts 

 ashy-brown ; a large white spot on the inner webs of all the tail 

 feathers, except the two outer and two centre ones. 



The Mountain Crag Martin is a not uncommon winter visitant 

 to the more hilly districts, but it does not occur on the plains, 

 and has not as yet been recorded from Sind, where its place is 

 taken by the next species, 



Cotyle (Ptyonoprogne) obsoleta, Cab. 



9l6is. Murray's Vertebrate Zoology of Sind, p. 104 ; Hume, 



Stray Feathers, Vol. I, p. 1. 



Length, 5'25 to 5'6 ; expanse, I2'25 to 13 ; wing, 4'4 to 475 ; 

 tail, 1-8. 



Bill black ; legs and feet horny-brown, 



