44) Lieut. R, E. Vauglian and Staff-Surg. K. H. Jones 



winter months ; it arrives during tlie third week in 

 September and leaves again in April. An exceptionally 

 late individual has been seen early in May. 



In company with Ph[/lloscopus proregulus, Sutoria, 

 Zosterojjs, and other small birds they are to be seen every- 

 where searching diligently for food, and are often observed 

 hanging on to the trunks of the trees head downwards, 

 after the fashion of a Tit. 



The feathers of the head and neck are moulted in 

 March, and the little song is to be heard at the end of 

 that month. 



Phylloscopus proregulus. 



Pallas's Willow-Warbler is a common winter visitor; 

 it arrives in October and leaves again in March, the latest 

 date recorded being the 26th of that month. 



This is an extremely tame little bird, much resembling 

 the Gold-crest in its habits. Haunting the tops of the 

 trees it hunts for its insect food all day, often hovering 

 Humming-bird fashion whilst it picks its quarry from 

 a leaf ; it is never still for a moment. 



In March they begin to monlt the feathers of the head 

 and neck, and during the latter part of the month commence 

 their sweet and rather loud little song. 



ACROCEPHALUS BISTRIGICEPS. 



This Heed- Warbler appeared suddenly in May 1906, and 

 swarmed for ten days in the reeds on every creek and 

 waterway of the Delta country. 



Some individuals also patronized the bamboos and all 

 were in song and very noisy. The song, which was voiced 

 very lustily, is rusty and creaky, and seems to be accen- 

 tuated during heavy tropical rain. 



After remaining some ten days the birds moved on and 

 were never seen again. The unusual occurience of this 

 species which, as a rule, does not rest on migration is in- 

 explicable to the writers. 



