■2 JOUBKAL, NATURAL HIST. SOCIETY OF SIAM. Vol. I. 



virtue of the Anglo-Siamese Treatj' of 1909. As localities are not 

 always stated by Messrs. Robinson and Kloss, it is possible that some 

 of the birds given in this paper were not found in what is now 

 Siamese territory. 



Next in chronological order is Mr. K. G. Gairdner's List of the 

 Commoner- Birds found in Siam, which was published in 1912 in the 

 Journal of the Siam Society, and comprises some 140 species, for tha 

 most part personally obtained or observed by Mr, Gairdner in 

 different parts of the countr}^ including 26 in Bangkok. An interest- 

 ing feature of the list is the attempt which has been made to give the 

 Siamese names of a number of the birds mentioned. 



Finally, we have the paper published in 1913 by Count Nils 

 Gyldenstolpe, the Swedish naturalist who spent nearly six months in 

 Siam between November 1911 and May 1912. This contains a list of 

 191 birds collected or observed in various localities ranging from 

 Sriracha and Koh-si-chang in the south, to about as far as Dene-chai 

 in the north. It is a notable addition to the published lists of our 

 avifauna. 



The descriptions in this paper will be as full as is considered 

 necessary to enable the various species to be readil}'' identified, but no 

 attempt will be made to render them technically complete. Further, 

 in order to avoid undue detail, one measuremeiit only will usually be 

 given, viz., the total length of the bird, but collectors are recommended 

 to take and record the following measurements : — 



Ijenifih. From tip of bill to tip of longest tail feather, with the 

 bird laid flat. 



Tail. From root of tail to tij) of longest tail feather. 



Wing. From bend of wing to tip of longest primary. 



Tarsus. From centre of joint connecting tarsus with tibia, to 

 basal joint of middle toe. 



Bill. From tip of bill to angle of gape. 



No remarks will be made on the nesting haliits of the species 

 dealt with. The reason for this omission is two-fold. In the first 

 place, an}^ notes on the subject, however slight, would unduly increase 

 the length of this paper, and so retard its completion. Secondly, one 

 vf the members of the Society is making a special study of the nests 

 and eggs of Siamese birds, and it is hoped that he may be in a position 

 before very long to give us the benefit of his observations on this most 



