THE BIEDS OF MONGOLIA ETC. , 273 



Measurements : — 



Length. Wing. Tail. Culmen. Gape. Tarsus. 





in. 



in. 



m. 



m. 



in. 



in. 



<s. Ussuri . . . 



11-9 



4-8 



5-45 



0-72 



118 



117 



$ . S.E. Mongolia 



10-3 



4-65 



502 



0-7 



108 



11 



A scarce species in S.E. Mongolia ; it was observed there only during 

 migration in the end of March and beginning of April. In Ordos it appears 

 to breed ; but in Kan-su and Halha we at times met with these birds, during 

 migration, in August and September, but did not obtain any specimens. In 

 Ussuri country it has been seen only on the shores of the Japanese Sea, during 

 the autumnal migration. In my book, I made at the time a memorandum 

 that its note resembles that of Falco tinnunculus. 



123. CoLLYRio PALLiDiROSTRis, Cass. SoTokopoof lleduO'cluvoy. 



A young female, obtained by us in Ala-shan, differs from Cabanis's 

 description (Journ. f. Orn. 1854, p. 146), and Heuglin's (Orn. N.O.-Afrika's, 

 i. p. 482) by its larger size, and having the shaft of the first quill white and 

 the first and second quills white. From Turkestan specimens of the same 

 age it diff*ers only by having the shaft of the first quill white. I am sorry to 

 say that in the Museum of the Academy of Sciences there are no African 

 specimens for comparison. 



Measurements from the skin — length 10", wing 4'^'36, tail 4'^"13, culmen 

 0"-68, gape 0'''97, tarsus l"-12. 



The bill is pale brow^n, legs lead-colour. 



The present species was observed in Ordos and Ala-shan, where 

 it principally inhabits the sacsaulnics. 



124. COLLYRIO TEPHRONOTUS, Vig. 



We found it only in the wooded plains of Kan-su, and on one or two 



VOL. II. 2 p 



