THE BIRDS OF NORTHERN THAILAND 389 



Timelia pileata jerdoni, Williamson, Journ. Nat. Hist. Soc. Siam, 1918, p. 17 



(Chiang Mai). — Gyldenstolpe, Ibis, 1920, p. 480 (Chiang Rai, error = 



Chiang Mai). 

 Timalia pileata lengalensis, Deignan, Journ. Siam Soc. Nat. Hist. Suppl., 1931, 



p. 136 (Chiang Mai). 

 Timalia pileata intermedia, Deignan, Journ. Siam Soc. Nat. Hist. Suppl., 1936, p. 



105 (Chiang Mai). 



Within our area, the red-capped babbler is known only from the 

 basins of the Mae Ping (Chiang Mai, Ban Mae Klang) and the Mae 

 Khong (Muang Fang, Wiang Pa Pao, Ban Hong Khaeo). At 

 Chiang Mai it is locally common and, at Muang Fang, almost abun- 

 dant. 



This species is strictly confined to the plains, where it occurs in 

 small flocks at places overgrown with bamboo, clumps of bushes, and 

 tall grass. The song, heard from the depths of the thickets, is a 

 squealing eeh' ' -eeh-eek-eeh-eek or wrd-d-reek, eeh' -eek-eek-eek-eek, the 

 notes descending the scale ; the alarm note is a sharp chink; one hears 

 also a sharp peek, by which the members of the group keep in touch 

 with one another as they work their way through the dense vegetation. 



Young, just learning to fly, were observed at Chiang Mai, May 28, 

 but an example in postnatal molt was collected at Muang Fang as late 

 as July 16. Birds in postjuvenal molt have been taken between July 

 15 and August 2 ; others, in postnuptial molt, between July 16 and 20. 



An adult male had the irides bright red; the eyelids blue-gray; the 

 bill black; the feet and toes horn brown; the soles yellowish; the 

 claws dark horn. A juvenile had the irides light grayish brown ; the 

 maxilla dull black; the mandible fleshy yellow, blackish horn at the 

 tip ; the interior of the mouth bright yellow ; the feet, toes, and claws 

 light horn brown ; the soles more yellowish. 



The adult has a narrow frontal band and a short supercilium 

 white; the crown chestnut-rufous; the remaining upperparts oliva- 

 ceous-brown, the rectrices indistinctly rayed; the lores conspicuously 

 black; the ear coverts, sides of the neck, and the sides of the upper 

 breast ashy gray ; the chin and upper throat white ; the lower throat 

 and the breast grayish white with black shaft streaks; the abdomen 

 rufous-buff ; the lower flanks and under tail coverts olivaceous-brown, 

 sometimes suffused with rufous-buff. The juvenile differs in having 

 the forehead, superciliary region, and crown olivaceous-brown like 

 the remaining upperparts. 



POMATORHINUS HYPOLEUCOS TICKELLI Hume 



Tenasserimese Long-billed Scimitar Babbler 



Pomatorhinus (. . . Orthorhinus) Tickelli Hume, Stray Feathers, vol. 5, 1877, 

 pp. 32-33 (Mount Muleyit, Tenasserim). 



