320 THE BIRDS OF MONGOLIA ETC. 



and bushes, but even on the perfectly bare mountains, and calls in such cases 

 either from stones or when on the wing. It is not rare in the Ala-shan 

 mountains, and still less so in Kan-su, in the lower and middle mountain- 

 ranges, where the earliest calling we heard was on the 4th of May. The 

 autumnal migration takes place towards the end of August. Its voice 

 exactly resembles that of Cuculus canorus. It is rather abundant in Ussuri 

 country ; and its cry was heard there from about the 10th of May until the 

 20thofJulY^ 



[To BE CONTINUE!?,] 



