2 MESSRS. ROBINSON AND KLOSS ON 



It will tlierufore ])c found that the total number of species of 

 birds found in Siani will vastly exceed the corresponding lists for 

 the Malay Peninsula, Ijuima, and otlier surrounding countries, and 

 will probably be not much le^s than 1,200-1,800 species. Of late 

 yeirs much ornithologicil work Ims been done in Siam by Williams )n, 

 Gairdner, Herbert,. Gyldeustolpe, Eisenhofer, Barton and ourselves, 

 and a considerable amount of literature on the subject has been 

 publisheil. No exhaustive faunal and regional lists have as yet been 

 issued, ^\ith the exception of a List of the Birds of Bangkok by 

 Williamson l, and a general list of the Birds of Siam by Count Nyls 

 (ivldenstjlpe 2, and we have therefore thought it well to publish a 

 fvdl and detailed account of the birds of S. W. and Peninsular Siam, 

 which we have defined as the portion of Siam south of the head of 

 the Gulf of Siam. As regards Peninsular Siam — that portion of tlie 

 C'juntry sjuth of the Isthmus of Kra or Pakchan river — we can claim 

 that our list is almost comple'ie : excluding whatever new forms 

 may hi found in the Nakorn range, no ne.v additions are likely to 

 bj made other than casual migrants, small owls and frogmouths, and 

 oihar nocturnal birds whose capture is always a matter of chance, and 

 conxmon southern Malayan birds of which actual specimens, for some 

 reiso;i or otlier, may not be in the possession of our own or other 

 museu!ns. For the northern portion of the area, from the Gulf of 

 Siam to the Pakchan river, i. e., S. W. Siam, Ave do not c^rim any such 

 completeness, though even in this section we do not think that the. 

 number of species that will ultimately be added to the list will prove 

 large or of great importance. 



Some statement may be given as to material on which this 

 paper is founded. Since 1901 one or other, or both of us, as well as 

 parties of the collectors attached to the F. M. S. Museums, have collected 

 over the southern portion of the area, and the collections made liave 

 numbered several thoiisand skins. A considerable number of these are 

 in the Bristish Museum ( Nat. Hist), South Kensington, and a few 

 at Tring, but the bulk remain with us and must outnumber very 



1. Joui,). Nat. Hist. Soc. Siam, vvls. i aud ii. 

 •2. Ibis, 1919. 



JOUKX. NAT. HIST. SDC. .SIAM. 



