BIRDS FROM SIAM AND THE MALAY PENINSULA 211 



13, 1931; two males, Kao Sabap, November 3, 16, 1933; one male, 

 Kao Seming, Krat, October 17, 1928; one male, Krat, December 20, 

 1929; one female, Muang, Kanburi, April 11, 1928; one male, Kwe 

 Noi, Kanburi, September 21, 1929; two males and one female, Sam 

 Roi Yot, November 7, 8, 1932. Dr. Smith also took a male at Vientiane, 

 Laos, February 21, 1929. 



This series shows a good deal of seasonal variation. In the unfaded 

 fall specimens the jugulum and foreneck are pyrite yellow, the chin 

 Ught drab, the streaks on the breast and belly olive-green, the mantle 

 warbler green. By the breeding season the mantle becomes more 

 yellowish, the jugulum and foreneck lose the greenish tinge, and the 

 streaks on the breast and belly tend to become less green and more 

 brownish. 



A young female from Lat Bua Kao, July 29, resembles the adult, 

 but the throat and jugulum are drab, the streaks on the breast and 

 belly fuscous, and the back is a darker, less yellowish green. Another 

 immature female has the streaks on the breast and belly more lightly 

 indicated than the Lat Bua Kao specimen and brownish, and the 

 jugulum has a yellowish tinge; it is slightly older and was taken at 

 Huey Yang, Sriracha, August 4. Three younger females from Pak 

 Chong and Lamton Lang, May 27 and June 26, in fresh unworn plum- 

 age have the chest mignonette green, the throat drab. The immature 

 male acquires an almost adult plumage before the streaks below are 

 replaced by olive-green streaked feathers; the pileum is a lighter red 

 and the mantle a darker green, however. 



One adult female (no. 306909) has some red-tipped feathers on the 

 nape. 



Some specimens have irregular bufly bars on the middle tail feathers 

 and shadow bars on the outer tail feathers, but on others these are 

 absent. The bars on the middle tail feathers show on the upper side, 

 but on the outer tail feathers they show only on the under side. 



The range of this form is from extreme eastern Burma and the 

 southern Shan States to Siam proper, Laos, southern Annam, Cochin- 

 china, and Cambodia. 



Dr. Smith's collection covers the Siamese range of eisenhoferi fairly 

 well, except the north. De Schauensee ^ states that it is not common 

 in northern Siam. In eastern, central, southeastern, and southwest- 

 ern Siam it is apparently not uncommon. In southwestern Siam it 

 has been taken as far south as Hua Hin and Nong Kae ^ and the local- 

 ity Sam Roi Yot (Pran River), where Dr. Smith collected specimens, 

 is not far off. Apparently it has not been taken in Peninsular Siam. 

 Herbert * states that it breeds near Bangkok in February. 



> Proc. Acad. Nat. Sci. Philadelphia, vol. 86, p. 248, 1934. 



> Williairson, Journ. Nat. Hist. Soc. Siam, vol. 2, p. 319, 1917. 

 « Journ. Nat. Hist. Soc. Siam, vol. 6, p. 298, 1924. 



