258 BULLETIN 186, UNITED STATES NATIONAL MUSEUM 



Serilophus lunatus stolidus, de Schauensee, Proc. Acad. Nat. Sci. Philadelphia, 

 1934, p. 246 (Doi Chiang Dao). 



The Burmese race of the silver-breasted broadbill is a rare resident 

 or the evergreen forests of the western provinces, reaching its eastern 

 periphery of range on the hills of the Khun Tan chain. On Doi 

 Suthep it occurred from 2,700 to 5,300 feet and on Doi Chiang Dao 

 from 4,000 to 4,600 feet, but I took it at quite low elevations at Ban 

 Muang Sum and Wiang Khae, where the evergreen reaches the plains. 



This broadbill moves in loose bands of as many as 20 individuals 

 through the dense jungle, feeding in the bushes and lower branches of 

 trees with the usual loud whistles and chatter of its family and show- 

 ing so little fear of man that a flock may be largely collected without 

 causing alarm to the survivors. 



I have taken immatures in postjuvenal molt between August 13 and 

 September 2 and adults in postnuptial molt between August 13 and 

 December 25. 



Adults had the irides dark brown ; the eyelids edged light green ; the 

 orbital skin greenish yellow ; the bill light blue with the edges of the 

 commissure blue-white, the base, rictus, and narial region orange- 

 yellow (the yellow portions separated from the light blue by slaty 

 blue) ; the interior of the bill light blue, of the throat orange-yellow; 

 the skin of the chin and throat orange-yellow; the tarsi yellowish 

 olive ; the toes olive-slate, each scute edged with orange ; the claws blue- 

 white, slaty blue on the basal half at the sides. 



The male has the forehead ashy gray, this color changing through 

 ashy brown on the crown, nape, and back, and chestnut-rufous on the 

 rump, to chestnut on the upper tail coverts; the rectrices black, the 

 outer pairs with broad white tips; the upper wing coverts black; the 

 primaries and outer secondaries blue with a broad black area near or 

 at the tip and a white spot on the inner web near the base ; the inner- 

 most secondaries light chestnut-rufous; a broad black supercilium 

 from above the lores to the nape ; the sides of the head ashy brown ; 

 the throat and breast ashy gray, fading to white on the abdomen and 

 under tail coverts ; the thighs black. The female differs in having a 

 gorget of shining silvery white across the upper breast and sides of 

 the neck behind the ear coverts. 



SERILOPHUS LUNATUS ELISABETHAE La Touche 



YUNNANESE SlLVER-BREASTED BROADBILL 



Serilophus lunatus elisabethae La Touche, Bull. Brit. On. Club, vol. 42, 1921, 



p. 14 (Hokow, southeastern Yunnan). 

 Serilophus lunatus, Gyxdenstolpe, Kungl. Svenska Vet.-Akad. Handl., 1913, p. 46 



(Ban Huai Horn). 

 Serilophus lunatus lunatus, Gyxdenstolpe, Journ. Nat. Hist. Soc. Siam, 1915, 



p. 229 (Khao Phlung) ; Ibis, 1920, p. 581 (Khao Pblung, Ban Huai Horn). 



