THE BIRDS OF MONGOLIA ETC. 



155 



List of the Birds during Spring M igration. 



Note. — The date given is the day on which the first specimen was noticed. The mark * means that 

 the species may have passed even earlier. All dates are Old Style. 



FEBRUARY 1873. 



Feb. 10.. 



„ 13.. 



.. 14 j 



„ 15.. 



Tsaidam. 



Casarca rutila. 



Anas boschas. 



Tardus ruficollis. 

 Mergus merganser. 

 Cygnus musicus. 



Querquedula crecca. 



Feb. 17.., 

 „ 18 -j 



„ 28.. 



Tsaidam. 



Vanellus cristatus. 



Dafila acuta. 



Herodias alba. 



Anser cinereus, var. rubrirostris. 



Anthropoides virgo. 



MARCH. 



1871. 



Mountains north of Pekin 



and S.E. Mongolia, as far 



as Dalai-nor. 



1872. 



S.E. Mongolia, 

 Kalgan to Hoang-ho. 



1873. 

 Lake Koko-nor. 



March 1. 

 „ 4. 



6. 



7. 



9. 

 10. 

 11. 



12. 



13. 



14- 



Ciconia nigra . 



Querquedula crecca 



Anser segetuni. 

 Casarca rutila. 



Accentor rubeculoides. 



Bucephala clangula*. 



Fulix cristata*. 

 Larus ichthyaetiis. 

 Chroicocephalus brunn'eice- 



phalus. 

 Atiser indiciis. 



Milvus melanotis. 



Upupa epops. 



Ciconia boyciana ? 



Bucepjhala clangula *. 

 Vanellus cristatus * . 

 Cygnus musicus * .... 



{ 



Cygnus musicus. 



Milvus melanotis . 

 Vanellus cristatus . 

 Larus occidentalis . 



Saxicola morio. 



Gracuhis carbo. 



Tadorna cornuta. 

 Spatula clypeata. 



VOL. III. 



