THE BIRDS OF MONGOLIA ETC. 



167 



Measurements : — 







From Kan-su. 





From Tibet 





s- 



<S- 



6- 



$• 





in. 



in. 



in. 



in. 



Length . . 



6-3 



6-4 



? 



? 



Width . . 



, 111 



11-7 



? 



? 



Wing . . 



415 



415 



4-05 



407 



Culraen . . . 



0-9 



0-93 



093 



0-92 



Gape . . . 



115 



p 



1-23 



108 



Tarsus . . 



0-9 



0-91 



087 



0-9 



Middle toe . . 



063 



0-65 



0-68 



0-6 



Middle claw 



0-27 



0-27 



0-27 



0-26 



Hind toe . . 



0-5 



0-48 



048 



0-48 



Hind claw . 



047 



0-46 



0-45 



0-47 



41. Troglodytes fumigatus, Temm. 



Troglodytes fumigatus is rather scarce in S.E. Mongolia. We found it 

 in the hills of Guchin-gurb, which were covered with bushes ; also about 

 Muni-ul. It does not occur in the Ala-shan mountains; but some were 

 obtained by us in Kan-su, even in the alpine region, as high as bushes grow. 



Only one young specimen was preserved from Kan-su ; and we therefore 

 cannot state whether it belongs to the present species or the Himalayan 

 T. nipalensis, Hodgs. In size this example does not differ from T.fumigatus; 

 whilst T. nipalensis is smaller. The colour, however, is dark ; but this might 

 be attributed to the bird's being young. 



I cannot with certainty state whether this bird is resident or migrant in 

 the localities visited by me ; but I believe that it migrates for the winter, 

 as on the 19th of September I came across one in the alpine region of Kan-su 

 which seemed to me to be migrating. It was very much exhausted, and sat 



