BIRDS FROM SIAM AND THE MALAY PENINSULA 31 



This is a purely coastal bird, usually frequenting islands off the 

 coast. It occurs in two phases, a blue and a white. 



Robinson ^^ records it from Koh Samui and Koh Pennan; later from 

 Koh Klum and Koh Kra™; Robinson and Kloss ''^ from the vicinity 

 of Puket; Gyldenstolpe ^^ from Koh Lak; Robinson and Kloss ^^ say 

 it is common throughout the coasts of Malaya in suitable localities. 



The species has a \vide range, from southern Korea and the Riu 

 Kiu Islands to Indo-China, Siam, BuiTna, the Malay Peninsula, the 

 Sunda Islands, Philippines, Celebes, and south to New Guinea, 

 Australia, and many Pacific Islands. 



MESOPHOYX INTERMEDIA INTERMEDIA (Wagler) 



Ardea intermedia Wagler, Isis, p. 659, 1829 (Java). 



Two males, Bung Borapet, June 20, 1930, and March 22, 1933. 



Gyldenstolpe ''* reports that tliis heron is abundant at Bangkok, 

 along the Menam Chao Phaya, and Tha Law, and later ^^ states that 

 a few specimens were seen along the coast in southwestern Siam; de 

 Schauensee ^^ took a male at Chieng Sen on January 10, and reports 

 it common there and at Chieng Rai. These two localities are in 

 northeastern Siam. Robinson and lOoss ^'' state that it is distinctly 

 uncommon in Southwest and Peninsular Siam. 



The form ranges from Peninsular India and Ceylon, east to Japan 

 and China, and south to Indo-Cliina, Siam, the Sunda Islands and the 

 Philippines. A related form is found in the Moluccas and Australia 

 and another in Africa. It is probably more abundant than the records 

 would indicate, for it is mistaken for the little egret (Egretta g. gar- 

 zetta), wliich has the upper mandible black, or the cattle egret (Bubul- 

 cus ibis coromandus), wliich is smaller and has a shorter bill and 

 tarsus. The biU in Alesophoyx i. intermedia is yellow except at the 

 extreme tip, wliich is blacldsh. 



NYCTICORAX NYCTICORAX NYCTICORAX (Linnaeus) 



Ardea nyclicorax Linnaeus, Systema naturae, ed. 10, p. 142, 1758 (southern 

 PJurope). 



One immature male, Bangkok, October 31, 1924. 



Stuart Baker ^^ records tliis form from Hua Takhae, central Siam, 

 Febrary 10, 19 IG; Deignan "^ had only one record for the Chiengmai 

 region, a solitary bird at Nawng Haw in September, but later de 



" Journ. Federated Malay States Mus., vol. 5, p. 143, 1915. 



'0 Ibis, 1915, p. 726. 



" Journ. Nat. Hist. See. Siam, vol. 3, p. 92, 1919. 



" Kungl. Svenska Vet.-Akad. Uandl., vol. 56, no. 2, p. 137, 1916. 



'3 Journ. Nat. Hist. See. Siam, vol. 5, p. 79, 1921. 



'« Kungl. Svenska Vet.-Akad. Hand!., vol. 50, no. 8, p. 72, 1913. 



" Kungl. Svenska Vet.-Akad. Uandl., vol. 56, no. 2, p. 136, 1916. 



'« Proc. Acad. Nat. Sci Philadelphia, vol. 81, p. 587, 1930. 



" Journ. Nat. Hist. Soc. Siam, vol. 5, p. 78, 1921. 



'8 Journ. Nat. Hist. Soc. Siam, vol. 4, p. 42, 1920. 



" Journ. Siam Soc. Nat. Hist. Suppl., vol 8, p. 173, 1931. 



