GULLS 99 



Breeds in northern N. A.; south in au- 

 tumn over the whole country in Aug. and 

 Sept.; winters from the Carolinas to Cuba 

 and Mexico. Not uncommon in Mass. in 

 migration, but more common elsewhere in 

 its range. 



67. MEW GULL. 



Similar in size and general coloration to 

 the Ring-bill, but the bill is a little stouter. 

 Europe and Asia, accidental in Labrador, 

 one record. 



Hooded Gulls. 



Size medium or small; heads in summer 

 adults black, grayish in winter; white be- 

 neath tinged with rosy in summer; white 

 markings on primaries variable or absent, 

 but never like those of the Coast Gulls. 



68. LAUGHING GULL: 

 Size, medium, 16; mantle, dark bluish 

 gray darker than in any species given ex- 

 cepting in the Black-back; primaries, black, 



