93 



pale brownish, darkest above. Adults are 

 are easily distinguished; the young are pale- 

 er than those of the Herring Gull, larger, 

 have slower wing beats, and a more majes- 

 tic flight. Breeds from the Bay of Funday 

 northward; south in Sept.; winters from 

 southern Greenland to Long Island; north in 

 April, a few often remain as far south as 

 Cape Ann, Mass., all summer. 



60. SIBERIAN GULL. 

 Smaller than the Black-back, 20; mantle 

 a little paler; feet yellow. Northern Asia; ac- 

 cidental in southern Greenland. 



61. GLAUCOUS GULL. 

 About the size of the Black-back, and 

 the flight is similar, but the mantle is pale 

 pearl-gray and the wings nearly or quite 

 white. Young, pale grayish, mottled above 

 with light brown. Bill yellow, feet pink. 

 Breeds in the Arctic Regions; south in win- 

 ter regularly to the Gulf of St. Lawrence; 

 rarely to Great Lakes and along coast to L. I. 



