THE BIRDS OF NORTHERN THAILAND 337 



gardens and abounded in the wastelands used for cremations, in the 

 thickets edging irrigation ditches and other watercourses, and in thin 

 deciduous forest. 



The streaked-eared bulbul travels in small bands, uttering a harsh, 

 and, in the hot weather, somewhat irritating, conversational chu-chu- 

 vhu; in flight, the same sound is delivered at rather longer intervals. 

 Stomachs examined by me contained both fruit and insects. 



A specimen with the gonads slightly enlarged was taken on June 11, 

 another with them enlarged, June 23; the breeding season, however, 

 begins much earlier than these dates would indicate, for a bird in full 

 juvenal dress was shot April 25. Two in postjuvenal molt were col- 

 lected July 6 and August 19, while all of eight adults taken between 

 April 2 and September 15 are in postnuptial molt. 



An adult female had the irides gray; the eyelids plumbeous; the 

 bill dark brown, horny brown at the base of the mandible ; the feet and 

 toes slaty brown ; the claws blackish. An unsexed adult had the irides 

 brownish gray ; the bill purplish flesh ; the feet and toes grayish horn. 

 A juvenile male had the irides light grayish brown; the bill horny 

 brown; the rictus and interior of the mouth flesh; the feet and toes 

 plumbeous ; the claws fleshy horn. 



The present form has the upperparts dull olivaceous-brown, the 

 feathers of the uncrested crown with darker centers, the rump and 

 upper tail coverts suffused with ochraceous, the remiges and rectrices 

 narrowly edged with ochraceous-olive along the outer web; the ear 

 coverts dull olivaceous-brown, with narrow silvery-white shaft streaks ; 

 the underparts sullied white, the upper breast and flanks suffused with 

 olivaceous, the lower breast and abdomen indistinctly streaked and 

 suffused with cream color; the bend of the wing and the under tail 

 coverts buffy cream ; the undersurf ace of the tail creamy olivaceous. 



The birds of northern Thailand are quite inseparable from those of 

 Bangkok and must be called conradi, since this name antedates robin- 

 soni by 33 years (cf. Deignan, Ibis, 1940, pp. 528-529). 



CRINIGER TEPHROGENYS HENRICI Oustalet 

 YUNNANESE WHITE-THROATED BULBUL 



Criniger Henrici Oustalet, Bull. Mus. Hist. Nat. [Paris], 1896, pp. 185-186 



("entre Manhao et Se-mao [Yunnan], sur les bords de la Riviere-Noire . . . 



a Nani-Xong, Ban-Moi et Hat-Hoa [Tonkin]"). 

 Criniger gutturalis, Gyldenstolpe, Journ. Nat. Hist. Soc. Siam, 1915, p. 166 



(listed). 

 Criniger gutturalis sordidus, Gyldenstolpe, Kungl. Svenska Vet.-Akad. Handl., 



1916, p. 67 (Pha Kho, Doi Pha Sakaeng, Khun Tan). 

 Criniger gutturalis henrici, Gyldenstolpe, Kungl. Svenska Vet.-Akad. Handl., 



1916, p. 67 (Pang Hua Phong, Khun Tan, Doi Pha Sakaeng). — Deignan, 



Journ. Siam Soc. Nat. Hist. Suppl., 1936, p. 108 (Doi Suthep). 

 Criniger gutturalis ochraceus, Gyldenstolpe, Ibis, 1920, p. 494 ("Throughout 



Siam proper"). — de Schauensee, Proc. Acad. Nat. Sci. Philadelphia, 1928. 



