THE BIRDS OF NORTHERN THAILAND 281 



to the Hua Mot-Langka-Nang Kaeo mountain-complex, Doi Ang Ka, 

 and Doi Mae Kong Ka. It frequents the edge of the evergreen and 

 forest clearings, usually on the mountains from 2,000 to 5,000 feet, 

 but, where vegetation is suitable, also reaching the plains. 



This little bird travels slowly in loose bands among the lower 

 branches of trees. In feeding, it combines the habits of flycatchers 

 with those of the American vireos, now craning its neck to examine 

 the under surface of a leaf, then flying out after a passing insect to 

 catch it with a snap of the bill and return to the same perch. 



A male, molting directly from the barred juvenal dress to that of 

 the adult, was taken on Doi Hua Mot, August 24. Adults in post- 

 nuptial molt were taken between August 24 and November 29. 



My specimens had the irides dark brown; the bill, feet, toes, and 

 claws black. 



The adult male has the upper half of the head and the nape glossy 

 blue-black; the scapulars, back, and rump dull brown, the feathers 

 of the last broadly tipped with white to make an irregular band ; the 

 upper tail coverts glossy greenish black ; the central pair of rectrices 

 black, the others black with an outwardly increasingly broadened 

 white tip; the wings black, with a conspicuous longitudinal band 

 formed by white edges to certain coverts and the inner secondaries ; 

 the chin, sides of the throat, and sides of the lower neck white; the 

 remaining underparts dull gray-brown, paling to white on the under 

 tail coverts. The adult female differs in having the crown and nape 

 dull, dark brown ; the wings and tail as in the male but dark brown 

 instead of black. 



HEMIPUS PICATUS PICATUS (Sykes) 



Black-backed Bar-winged Flycatcher-shrike 



Muscicapa picata Sykes, Proc. Coram. Sci. Corr. Zool. Soc. London, pt. 2, 1832, p. 



85 ("The Dukhun" [= The Deccan]). 

 Hemipus picatus, Gyldenstolpe, Kungl. Svenska Vet.-Akad. Handl., 1913, p. 32 



("Northern provinces") ; 1916, p. 41 (Khun Tan, Pha Hing, Pha Kho) ; 



Journ. Nat. Hist. Soc. Siam, 1915, p. 167 (listed) ; Ibis, 1920, p. 470 



("Northern Siam"). 

 Hemipus picatus picatus, de Schauensee, Proc. Acad. Nat. Sci. Philadelphia, 



1929, p. 549 (Chiang Rai). 

 Hemipus picatus [partim], Riley, U. S. Nat. Mus. Bull. 172, 1938, p. 483 



(Khun Tan). 



The black-backed flycatcher-shrike is common in all parts of our 

 area outside the range of the brown-backed form. 



A female in postjuvenal molt was collected at Ban Huai Thae, 

 June 12. Adults in postnuptial molt were taken at Doi San Huai 

 Wai, Ban Mae Mo, and Doi Khun Tan between June 4 and 

 September 2. 



