1920.] List of the Birds of Siam. 769 



Butorides striatus javanica Hovsf. 



Ardea javanica Horsfield^ Trans. Linn. Soc. Lond. xiii. 

 1821, p. 190 : Java. 



Generally distributed throughout the whole country, 

 though less abundant in the northern districts. 



Ardeola grayii Sykes. 



Ardea grayii 8ykes, P.Z.S. Lond, 1832, p. 158 : Deccan. 

 Apparently distributed throughout the whole country, 

 where it mostly occurs in the rice-fields. 



Ardeola bacchus Bp. 



Buplnis bacchus Bonaparte, Consp. Gen. Av. ii. 1855, 

 p. 127 : Malacca. 



The Chinese Pond-Horon has been recorded from several 

 localities in northern and eastern Siam, and it has also been 

 found on Koh Mak, Koh Samui, and Puket. In the winter 

 plumage it is hardly possible to separate this species from 

 Ardeola grayii Sykes. 



Bubulcus coromandus Bodd. 



Caiicroma coromanda Boddaert, Tabl. PI. Enl. 1783, p. 54 : 

 Coromandel coast. 



Very common throughout the whole country. 



Ixobrychus sinensis Gni. 



Ardea sinensis Gmelin, Syst. Nat. i. pt. 2, 1789, p. 642 : 

 China. 



The Yellow Bittern appears to be generally distributed 

 throughout Siam. It frequents marshes, dense swampy 

 thickets, or hides in the rice-fields, and is seldom seen. 



Ixobrychus cinnamomeus Gm. 



Ardea cinnamomea Gmelin, Syst. Nat. i. pt. 2, 1789, 

 p. 643 : China. 



The Chestnut Bittern occurs on the same localities as the 

 former species ; it is perhaps more common. 



Dupetor flavicollis flavicollis Lath. 



Ardea fiavicollis Latham, Ind. Orn. ii. 1790, p. 701 : 

 S. China. 



Apparently rather rare in Siam, though it has been 

 recorded from several parts of the country. 



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