172 THE BIRDS OF MONGOLIA ETC. 



does not inhabit Kan-su. In the end of August we met with PLfuscata very 

 frequently in the Hoang-ho valley, probably during migration; and in May 

 we found it again in Northern Ala-shan. It breeds numerously in Ussuri 

 country ; and the first migrants arrived at Lake Hanka on the 12th of April, 

 1868. 



53. Abrornis aRxMandii, M.-Edw. 



Abrornis armandii, Milne-Edwards^ Nouv. Arch, du Museum^ i. 1865^ pi. ii. fig. 1. 



Found rarely in Muni-ul, and does not occur in Kan-su and Ala-shan. 

 Measurements of the male — length 4''-9, wing 2^''27, tail 2"*03, culmen 0-'-4, 

 tarsus 0"-8, hind toe 0"-26, its claw O'^'IS. 



54. Abrornis affinis, Hodgs. 



Only in Kan-su^ and does not go further north ; keeps to the wooded 

 districts, especially in groves near rivers and brooks. Measurements of a 

 female— length 4^ wing 2"-l, tail l"-67, gape 0"'51, tarsus 0''-67. 



55. Reguloides proregulus, Pall. Slavka corolek. 



We obtained specimens in Kalgan and Muni-ul, and found it common 

 about Lake Hanka during the spring migration, which commences in the 

 early part of April and lasts to the beginning of May. 



56. Reguloides superciliosus, Gmel. 



Breeds in S.E. Mongoha, but does not occur either in Ala-shan or in 

 Kan-su. The first migrants were noticed on the 1 2th of April, at Muni-ul, 

 when they kept mostly in the bushes of the high region of mountains, and 

 on fine days were singing heartily. 



In marching through Gobi we at times met with a few migrating 

 R. super ciliosus, and found it to be common in Ussuri country. 



