ART. 7 BIRDS FROM YUNNAN AND SZECHWAN, CHINA RILEY 17 



from Nanking, and three young of the year from Ymman. All 

 the latter are smaller than those with the barred carpo-metacarpal. 

 Now the birds that have the carpo-metacarpal barred are darker 

 above and the barring below is heavier than in Guculus canoms 

 telephonus and apparently represent the breeding form throughout 

 the mountains of western China from northern Szechwan south into 

 Yunnan and Assam. From the description, I believe this to be 

 Guculus canorus hakeri Hartert. This constitutes only an exten- 

 sion of the known range northward in the mountains. 



Rothschild ^- records takevi from Yunnan and Lonnberg ^^ from 

 western Kansu, and Bangs and Peters ^* have recently not only 

 recorded it from the mountains of Kansu but from eastern Tibet. 



The wings of the four undoubted adults of optatus measure : 2185 

 213, 203, and 195 mm. Twelve males of the dark breeding birds from 

 the mountains of Yunnan and Szechwan with barred carpo-meta- 

 carpal feathers have wings measuring 213-231 (225) mm. Three 

 females of the same form from the region have wings measuring 213, 

 220, and 220 mm. Thus it will be seen that Guculus optatus ap- 

 parently breeds in the mountains along with the present form, as 

 the three immatures from Yunnan indicate. 



The four birds recorded by the author ^' from Kansu as Guculus 

 canorus telephonus prove on reexamination to be both that form and 

 hakeH. The adults from Ninghsia and Lanchow were correctly de- 

 termined ; the immature and adult from 120 miles south of Lanchow 

 belong to hakeri. It is probable that the latter is the breeding form 

 and that telephonus is only a straggler in the Province. 



53. GUCULUS OPTATUS Gould 



Cuculns optatus Gottld, Proc. Zool. Soc. London, 1845, p. 18 (Port Essiugton, 

 Australia). 



One immature female, Yulo, 7,000 feet, Yunnan, August. 



54. HIEROCOCCYX SPAEVERIOIDES (Vigors) 



Cuculus sparverioides Vigors, Proc. Zool. Soc. Loudon, 1832, p. 173 (Himalaya). 



One male, Lapo-laze, north of Likiang, 10,000 feet, Yunnan, May, 

 and one male, Muli Mountains, 10,000 feet, southwest Szechwan, June. 



55. CACOMANTIS MERULINUS QUERULUS Heine 



Cacomantis querulus Heine, Journ. f. Orn., 1863, p. 352 (India, Nepal, Burma). 

 One male, Weihsi, 11,000 feet, northwest Yunnan, September. 



^ Nov. Zool., vol. 33, p. 236, 1926. 



iMbis, 1924, p. 318. 



" Bull. Mus. Comp. Zo51., vol. 68, p. 331, 1928. 



« Proc. U. S. Nat. Mus., vol. 77, art. 15, p. 13, 1930. 



70403—31 2 



