BIRDS FROM SIAM AND THE MALAY PENINSULA 423 



ORTHOTOMUS SUTORIUS MACULICOLLIS Moore 



Orthotomus maculicollis Moore, Proc. Zool. See. London, 1854, p. 309, 1855 

 (Malacca). 



Two males, Bangnara, Patani, July 13, 16, 1926; one immature 

 female, Bukit, Patani, Januaiy 23, 1931; one male, Yala, Patani, 

 January 31, 1931; one male, Pran, April 3, 1931; two males, Muang 

 Kanburi, April 16, 1928; one male, Aranya, July 13, 1930; eight males, 

 seven females, and one unsexed, Bangkok, May 22, 1923, February 28 

 and October 30, 1925, April 5-September 6, 1926, April 15-May 3, 

 1934; one female, Bung Borapet, March 21, 1933; one male, Nong 

 Khor, near Sriracha, March 23, 1926; one male, Muek Lek, April 19, 

 1933; one male, Pak Chong, May 8, 1925; three males and one female, 

 Ban Nam Kien, Nan, April 20, 22, 1930. 



Dr. W. L. Abbott collected one female, Tyching, Trang, June 30, 

 1896; one male, the Bindings, Straits of Malacca, April 12, 1900; and 

 a male and female, Tanjong Kalong, Singapore, June 9, 1900. 



The small series from Peninsular Siam are slightly darker above than 

 specimens from Siam proper, but the difference is slight and not 

 worthy of being recognized by name. The only specimens examined 

 from northern Siam are the three males and a female from Nan and 

 these can hardly, if at all, be distinguished from Peninsular specimens. 

 Some specimens from Siam proper have the cheeks and ear coverts 

 unstreaked, but they all seem to be females, and I believe this to be 

 more or less of a sexual character. All the males with long central 

 feathers have streaked or grayish ear coverts. It is my belief that 

 0. s. patia does not reach Siam at all, at least in its typical form, and 

 all Siamese records had best be assigned to maculicollis. 



This would make the range of the latter extend from Singapore 

 northward through Peninsular Siam to northern Siam and eastward 

 to Cambodia, Laos, Cochinchina, and southern Annam. 



Herbert *^ states that it breeds around Bangkok from early in May 

 to late in August, though June and early July is the most general 

 time; he describes the nest and eggs. 



Dr. Smith took an immature female at Bukit, Patani, January 23. 

 It is about half grown, a pretty late date; possibly in the south the 

 breeding season is irregular. This young bird resembles the female 

 except that the pileum is light brownish olive, instead of bay with a 

 grayish nape. 



Apparently this is not a common bird in Peninsular Siam, becoming 

 more abundant in the north. It is a common garden species around 

 Bangkok and is resident where found. 



«> Journ, Nat. Hist. Soc. Siam, vol. 6, p. 98. 1923. 



