1920.] List of the Birds of Siam. 417 



as I have ali-oady stated, much work remains to be done 

 before we shall be able to give a complete account of 

 the bird fauna. But in spite of that, the publication of a 

 nominal list of the birds at present known to inhal)it Siam 

 may he of some use to future workers on the Ornitholooy 

 of the countrv, and no apologv seems to be needed for 

 jjublishino- such a list. 



As in my paper on the '' ^lannnafs at present known to 

 inhabit Siam/' no bulky list of svnon^nns has been added 

 to each form, l)ut references to the original descri))tion of 

 the s[)ecies and subspecies is given in all cases, so thiit they 

 may easily be looked up and studied. The type-localities 

 have also been mentioned, but as several of the older authors 

 either did not fix localities or gave wrong and misleading 

 information as to where their new species had been collected. 

 I have in various cases given the I'estricted type-localities 

 instead of the original and wrong ones. A few brief remarks 

 liave been attached to each species and subspecies as to their 

 geographical distribution in the countr}', and the divisions 

 used are those drawn u\> and defined by Boden Kloss in his 

 paper " Zoo-geographical divisions for Siam " (Journ. Nat. 

 Hist. Soc. Siam, vol. i. 1915, No. -1, p. 2^)0), though they 

 have been slightly modified. 



My list has chiefly l)een j)repared with the aid of the 

 n\ateria] that I collected during my two journeys in various 

 parts of Siam. I'liis mateiial is now being kept at the 

 Royal Natui'al History Museum in Stockholm and com- 

 ])rises some 2500 specimens. ]]ut I have of course also 

 gone carefully through and consulted the literature on the 

 subject found in various scientific periodicals, and from 

 these papers I have got much valuable information. Several 

 of the recently descriljed species and subspecies iiave, 

 however, not been accessible for examination, and I am 

 therefore rather uncertain about their valiilitv. They 

 have, however, all been mentioned, though some mav have 

 later lo Ije placed among the synonvms of other forms. 



