THE BIRDS OF NORTHERN THAILAND 309 



PARADOXORNIS GULARIS TRANSFLUVIALIS (Hartert) 



Burmese Gray-headed Crow-tit 



Scaeorhynchus gularis trans fluvialis Haetekt, Nov. Zool., vol. 7, 1900, p. 548 

 (Guilang, North Cachar). 



Psittipartis gularis transfluvialis, de Schauensee, Proc. Acad. Nat. Sci. Phila- 

 delphia, 1929, p. 529 (Doi Suthep) ; 1934, p. 181 (Doi Suthep).— Deignan, 

 Journ. Siam Soc. Nat. Hist. Suppl., 1931, p. 135 (Doi Suthep). — Chasen and 

 Boden Kloss, Journ. Siam Soc. Nat. Hist. Suppl., 1932, p. 246 (Doi Suthep).— 

 Greenway, Bull. Mus. Coinp. Zool., 1940, p. 168 (Doi Aug Ka). 



Psittiparus gularte gularis, Deignan, Journ. Siam Soc. Nat. Hist. Suppl., 1936, 

 p. 103 (Doi Suthep). 



On Doi Ang Ka and Doi Suthep the present form is a common resi- 

 dent of the evergreen from 4,500 to 5,500 feet, occasional as low as 3,500 

 feet. It has not yet been recorded from the other high mountains of 

 the western provinces. 



This parrotbill travels in loose flocks through the forest, at clearings 

 descending into the bushes but in denser places keeping to the tops of 

 the trees. It is a rather silent bird that explores the leaves and hangs 

 head downward from the ends of branchlets in the manner of a 

 titmouse. 



I took a very young juvenile on Doi Ang Ka, April 10, and at the 

 same locality an adult in postnuptial molt, September 5. 



De Schauensee notes that old birds had the irides dark brown ; the 

 bill dull, dark yellow ; the feet and toes slaty blue ; the claws whitish. 

 My juvenile had the irides brownish gray; the bill orange-yellow; 

 the feet and toes plumbeous-blue ; the soles yellow ; the claws fleshy. 



This species has a frontal patch and a line along each side of the 

 crown to the nape black; the crown, nape, ear coverts, and sides of' 

 the neck ashy gray; the remaining upperparts fulvous-brown, suf- 

 fused with olive; the chin gray; the lores, eye ring, and sides of the 

 throat white; the center of the throat black; the remaining under- 

 pays white, more or less suffused (especially on the breast and flanks) 

 with buff. 



PARADOXORNIS GULARIS LAOTIANA (Delacour) 



Lao Gray-headed Crow-tit 



Psittiparus gularis laotianus Delacoub, Bull. Brit. Orn. Club, vol. 47, 1926, pp. 



19-20 (Chiang Khwang, Laos). 

 Psittiparus gularis trans fluvialis, Riley, U. S. Nat. Mus. Bull. 172, 1938, p. 310 



(Khun Tan, Doi Langka). 



The Lao gray-headed parrotbill was found by Smith on Doi Khun 

 Tan and Doi Langka, at the former locality between 3,000 and 4,000 

 feet. It should be looked for on other high hills of the Khun Tan 

 range and also on Phu Kha. 



