DIKECTORY TO BIRDS OF EASTERN NORTH AMERICA. 47 



55, lower figure. Whole of the U. S. and northward, breed- 

 ing in the Arctic regions ; migrates southward in Aug., Sep, 

 and Oct. along the coasts 

 and waters of the interi- 

 or ; winters, in our sec- 

 tion, from the Carolinas 

 south to the Gulf of Mex- 

 ico ; goes north in March, ^^_^ 

 April and May. Flight, r^pr=^^ 

 easy, graceful and tern- ^^^a^^^'" 

 like ; when migrating, ~^^ 

 often flies along shore ^ ^ ^^S 

 close to land, usually in JP, B, d, 3. 1- 



small companies, sometimes whirling with a sweeping flight 

 much like sandpipers; in the south in winter occurs scatter- 

 ingly, flying over sounds or creeks, or often far up fresh wa- 

 ter rivers. The cry, seldom heard in migration, is harsh and 

 rasping. Common. 



4. LITTLE GULL, C. minutus. Differs from 2 in be- 

 ing smaller, (11.00) and in having little or no black on the 

 wings ; in the young the tail is without a black tip. Europe 

 and parts of Asia and Africa ; accidental in the Bermudas 

 and on Long Island. 



e. Rosy Grulls. Rhodostethia. 



Size, small; head, always white in adults; entire plu- 

 mage, strongly tinged with rosy ; tail, graduated, flg. 56. 



1. BOSS'S GULL, R. rosea. White tinged with pink; 

 mantle and lower surface of wing, pale 

 pearl-gray ; outer web of first primary and 

 narrow ring around neck, black. In win- 

 ter the black collar is absent, the head is 

 tinged with pearl-gray and there is a black- 

 ish spot in front of eye. Young; upper 

 parts, more or less clouded with dusky 

 and some of the inner tail feathers are F, B, e, 1. 1-3. 

 tipped with black. Arctic regions, south, within our limits, 

 to Disco Bay, Greenland. Rare. 



