34 Mr. H. Seebohm on the 



ANAS STREPERA. 



The Gadwall is a common resident in the plains of the 

 Caucasus. 



ANAS ANGTJSTIROSTRIS. 



The Marbled Duck is a rare resident in the plains of the 

 Caucasus. 



ANAS ACUTA. 



The Pintail is a common resident in the Caucasus. 



ANAS QUERQUEDULA. 



The Garganey is common throughout the Caucasus. 



ANAS CRECCA. 



The Teal is common throughout the Caucasus, except on 

 the mountains. 



ANAS PENELOPE. 



The Wigeon is not so common in the Caucasus as the 

 other ducks. 



ANAS CLYPEATA. 



The Shoveller is found in all the plains of the Caucasus. 



FULIGULA RUFINA. 



The Red-crested Pochard winters in the Caucasus, and pro- 

 bably breeds there. 



FULIGULA MARILA. 



The Scaup winters on the southern shores of the Caspian. 



FULIGULA CRISTATA. 



The Tufted Duck is common during the spring and autumn 

 migrations in the plains of the Caucasus, and winters on the 

 southern shores of the Caspian. 



FULIGULA FERINA. 



The Pochard is found throughout the plains of the Cau- 

 casus. 



FULIGULA NYROCA. 



The White-eyed Duck is very common in the valleys of 

 the Terek and the Kuban. 



