( 85 ) 

 CASPIAN TEEN. 



HYDRO^GNE CASPIA (PALLAS). 



Description. — Length 22 inches. 

 "Bill coral red in summer, dull in 

 winter, with the terminal portion 

 dusky. Iris dark brown. Legs and 

 feet black." 



This is the largest of the Terns and 

 one of the handsomest. 



It is readily recognized by the strong, 

 sharp, red bill, black legs, and black 

 occipital crest. 



The general color of the upper 

 plumage is pearl grey and the under 

 parts white. 



Distribution. — It is practically world- 

 wide in its distribution. It passes the 

 Yangtse Valley on migration and is 

 most commonly seen along the coast, 

 though it is occasionally found on the 

 lakes and marshes of the interior. 



David remarks that he only met with 

 this Tern in couples, but small flocks 

 were repeatedly seen by Dr. Bergen in 

 Chef 00 harbor. 



THE WHITE-WINGED BLACK 



TEEN. 



htdeochelidon leucoptera 

 (temm.) 



Description. — Length 10 inches. 

 Bill and legs red. Iris dark brown. 

 Abdomen, under tail coverts, and tail 

 are white. The wing quills are grey. 

 The rest of the plumage is a deep black. 



Distribution. — Europe, North Africa 

 and Asia. It passes the Yangtse Valley 

 on migration. This Tern is found 

 along the China coasts and also 

 frequently on the inland waters. 



