THE 



JOURNAL 



OF THE 



Natural History Society of Siaiii. 



Voliiuic V. Banirkolc. Number 1. 



THE BIRDS OF SOUTH-WEST AND PENINSULAR SIAM, 



iiVASii AN ACCOUNT OF THK lilKDS OV SlA.M FKOM THK HKAD OF THK GtJLF OF SlAM 



TO THE Malayan bokdek, with refekences to the uecoiiued occukkences 



AND a key to the INDIVIDUAL SPECIES. 



By HEUBiiRT C. R<)Bixs(jN, C.M.Z.S., M.15.0.U., Diiectt)!' of Museiiins, 

 Federated Malay States, 



AND 



Ckcil Bodex Kl')S.s, f.z.s., m.ko.u., Assistant Direct jr of Museums, 

 Federated Malay States. 

 (With a map). 

 INTRODUCrrOX 

 By Herhert C. Ruhixsjn. 

 The Kin;.^d')iii of Siam from a zoological point of view cjiitciins 

 such a mixture of ditterent faunas that, unless dealt with in the most 

 elaborate detail, any general list of its avifauna Avill convey little of 

 zoogejgraphical value. In the extreme south its fauna is almost 

 exclusively Malayan. Further north, to the west of the Chao Praya 

 river, it is identical with that of Tenasserim, while that of the X. W. and 

 the neighbourhood of Chienginai approximates to the dry zone of Burma 

 and the Shan States. Tiie extreme N. and N.E., which are least 

 known, probably contains a certain proportion of Yuimanese birds. 

 The central and eastern portions of the Kingdom are the ouly areas 

 which contain forms that may be claimed as distinctively Siamese, and, 

 with a few notable exceptions, these forms are not strongly ditferent- 

 iated. The fauna of S.E. Siam, as shown by the collections made In- 

 one of us, is, as might be expected, largely Cambodian and French 

 Indo-Chinese. (Ibis 1915, pp. 718-761). 



