. THE BIRDS OF MONGOLIA ETC. 433 



times observed by us during the summer in the Yellow-River valley, where 

 it probably breeds. Pere David also mentions some small Bustards which 

 he saw in S.E. Mongolia, and which the Chinese call " Cepoo ;" but neither 

 he nor we succeeded in getting a specimen. 



210. Vanellus cristatus, Meyer. Pigolitza chibetz. 



Is found breeding throughout S.E. Mongolia and the Yellow- River 

 valley, where small marshes or even brooks occur; and as early as the 5th 

 of June we saw fledged young. 



During the spring migration, which principally takes place in the end 

 of March and beginning of April, we often saw large flocks of these birds 

 about Dalai-noi. 



In Tsaidam the first migrants arrived on the 17th of February. We 

 saw some birds at Koko-nor even as late as the middle of October; but in 

 spring they did not arrive until the middle of March, and even then only in 

 small numbers, and did not commence building until April. 



We did not observe this species in Kan-su. 



About the 10th of March they appear at Lake Hanka; and as soon as 

 the lakes and ponds are free from ice, they go to nest, and the young 

 commence flying about the middle of June. 



211. Chettusia inornata, Schleg. 



Temm. & Schleg. Faun. Jap. pi. Ixiii. 



Is much rarer than the preceding species in S.E. Mongolia. We saw 

 the earliest migrants on the 16th of March, 1871, and on the 1st of April, 

 1872. In the Hoang-ho valley they breed tolerably numerously about the 

 lakes and ponds. 



It is much more shy than F. cristatus ; and although it flies towards the 

 sportsmen with loud cries when its young are in danger, still it very soon 



3m 2 



