554 Dr. C. B. Ticeliurst on [Ibis, 



the third week in June, by which time the organs begin to 

 enlarge, and it breeds in July and August, and this agrees 

 with Barnes' statement for the breeding period. This little 

 Warbler is one of the very few birds which enliven the 

 desert with its pleasing little song. It extends as far west 

 at all events as the Beluchi boundary at the Habb River. 



A series give the following measurements : — 



cJ , wing 51-55*5 ; tail, summer, 53-56 ; tail, winter, 03- 

 70 mm. ? , wing 47-51 ; tail^ summer, 51-60; tail, winter, 

 68 mm. 



Adults undergo a complete moult in May and again in 

 October-November, while the juveniles also undergo a com- 

 plete moult into winter dress. Iris yellow-brown ; bill 

 brown, flesh-coloured at the base, darker in summer ; legs 

 pale flesh. 



Sind birds are in no way separable from those from the 

 Deccan and Bengal. 



Laticilla burnesi (Blyth). 



Burnes' Grass-Warbler is confined to the Indus and canal 

 areas where thick jungle exists ; here it is locally common 

 and resident, and outside this terrain it is not met with. It is 

 found from the northern frontier right down, at any rate, as 

 far as the Jerruck division. It is one of the most skulking 

 of birds, only equalled by Cetti's Warbler, and during the 

 day little or nothing is usually to be seen of it ; just after 

 daybreak, however, and just before sunset, it comes out 

 of its thick retreat on to the outside of a bush, and creeps 

 about, singing cheerily at intervals, only to dive into thick 

 cover at once on being disturbed. It is a bird of the "khan" 

 grass {Sacca7'hu)n arundinaceam) , which in places presents 

 an unbroken sea of grass, or where much of this grass 

 is intermixed with the two acacias or tamarisk ; so that, 

 in addition to its skulking habits, it is very dithcult to 

 observe on account of the thickness of the cover and 

 restriction of one's view. 



Doig found it breeding in the E. Narra District on 

 13 March, and has given a full description of its nest (S. F. 



