BIRDS FROM SIAM AND THE MALAY PENINSULA 413 



The species has a wide range, extending from southwestern Burma, 

 tlurough Peninsuhir Siam to the Malay States, Sumatra, Java, Borneo, 

 the Suhi Ishmds, Basilan in the Phihppines, Sumbawa, South Flores, 

 Lombok, and Bah. 



Besides the above specimen from Trang, I have handled only one 

 other specimen— a female from Klumpang Bay, southeastern Borneo. 

 The two specimens differ somewhat. The Bornean bird has the chin 

 black instead of white and the mner primaries and outer secondaries 

 have a wood-brown mark on each side of the shaft at the tip. These 

 differences may be individual, however. 



OREOCINCLA DAUMA DAUMA (Latham) 



Tardus dauma Latham, Index ornithologicus, vol. 1, p. 362, 1790 (India). 



One male and one female, Khun Tan, 3,000 feet, February 14 and 

 26, 1932; one female, Doi Hua Mot, August 28, 1934. 



With the last-mentioned female a nest with three nestlings with the 

 eyes unopened was taken. It is a large flat nest composed entirely of 

 pine needles, except for a narrow rim of mud mixed with a little moss 

 around the base to fasten it to the limb it was on. It was 10 feet from 

 the ground in a tree. The nest cavity is very shallow, and the nest 

 is very unthrushlike in appearance. The outside diameter of the 

 nest is 8 inches; the egg cavity 4 inches wide and about 1 inch deep. 



The tliree adult specimens are much lighter above and have the 

 white tip to the outer tail feathers more extensive than in the next 

 form (socia). They measure (male first): Wing, 143, 141, 145; cui- 

 men, 22, 23.5, 24 mm. 



A male from western Kashmir, collected in July, is paler above than 

 any of the Siamese specimens, but an unsexed specimen from Nepal 

 is quite dark, a little darker even than the Siamese birds. 



The range is, according to Stuart Baker, in summer the Himalayas 

 from Hazara to Assam above 8,000 feet, the mountains of Tenasserim 

 to northeastern Burma; to which may be added the mountains of 

 northern Siam. 



This species is similar to 0. aurea aurea but is smaller, with only 12 

 rectrices. 0. aurea has 14 rectrices, and the wing ranges in the male 

 from 164 to 173 mm. 



OREOCINCLA DAUMA SOCIA Thayer and Bangs 



Oreocincla dauma socia Thayer and Bangs, Mem. Miis. Comp. Zool., vol. 40, 

 no, 4, p. 174, 1912 (Tatscienln., Szcchwan, China). 



Two males and one female, Doi Nangka, November 11 and 19, 

 1930. 



These three specimens are darker and moje heavily spotted with 

 black above than the three birds previously listed as dauma. De 



33527—38 27 



