THE BIRDS OF NORTHERN THAILAND 341 



of the series, as might be expected from the date of collection (May 12) . 

 C. lonnbergi seems to be inseparable from M. c. propinquus, as has 

 already been pointed out by others. The type specimen of Gylden- 

 stolpe's race was a female from Ban Huai Horn, February 12, 1912; 

 the sole paratype, an unsexed bird from Khao Phlung, January 28, 

 1912. 



MICROSCELIS VIRESCENS TICKELLI (BIyth) 



Tenasserimese Rufous-breasted Bulbul 



Hypsipetes Tickelli Blyth, Journ. Asiat. Soc. Bengal, vol. 24, 1855, p. 275 



(mountainous interior of Tenasserim). 

 Ixos macclellandi tickelli, de Schauensee, Proc. Acad. Nat. Sci. Philadelphia, 



1929, p. 539 (Doi Suthep) ; 1934, p. 202 (Doi Suthep, Doi Chiang Dao).— 



Rieey, U. S. Nat. Mus. Bull. 172, 1938, p. 381 (Doi Ang Ka, Doi Khun Tan, 



Doi HuaMot). 

 Ixos mcclellandi tickelli, Deignan, Journ. Siain Soc. Nat. Hist. Suppl., 1931, 



p. 140 (Doi Suthep). — Chasen and Boden Kloss, Journ. Siam Soc. Nat. 



Hist. Suppl., 1932, p. 242 (Doi Suthep).— Deignan, Journ. Siam Soc. Nat. 



Hist. Suppl., 1936, p. 109 (Doi Suthep). 



The present race is very common on the higher mountains of the 

 districts west and south of (and including) the Khun Tan chain, rang- 

 ing through the evergreen from 2,700 feet (Doi Suthep) to 7,000 

 feet (Doi Ang Ka). In addition to the localities named above, it is 

 known from Doi Pha Horn Pok by a single specimen, which, in my 

 opinion, should be considered merely an aberrant example of M. v. 

 binghami. 



The rufous-breasted bulbul may be seen in the lower trees along 

 the trails or at the edge of the forest, usually in pairs but, where fruit 

 is plentiful, in small flocks together with others of the family. 



As in the case of certain related species, the breeding season of this 

 bulbul seems to cover many months : specimens with the gonads greatly 

 enlarged were taken on February 21, May 31, August 24, and Septem- 

 ber 3. Birds undergoing body molt have been collected on August 

 23, September 1, and December 6. 



A breeding male from Doi Suthep had the irides crimson ; the eyelids 

 edged red; the bill brown; the feet, toes, and claws horny pink; the 

 soles yellowish. Another had the irides dull red ; the maxilla horny 

 black ; the mandible horn, darker at the tip and lighter at the base ; the 

 feet and toes pinkish brown ; the soles chrome yellow. De Schauensee 

 notes (1929) that his examples had the irides chestnut; the bill 

 brownish flesh ; the feet and toes fleshy brown. 



M. v. tickelli has the lanceolate feathers of the crown and crest dull, 

 dark brown, with conspicuous pale shaft streaks ; the remaining upper- 

 parts bright olive-green ; the feathers of the chin and throat ashy gray, 

 with conspicuous white central streaks; the sides of the neck dull 

 rufous; the feathers of the breast pale rufous, with indistinct pale 



