54. Larus delawarensis 
RING-BILLED GULL. 18.50 inches 
Adult. In summer. Above, head white; back gray; long quill 
feathers black, spotted and tipped with white ; tail white. Below, 
white ; 4727 yellow with black band ; feet yellow. In winter. Simi- 
lar but head white streaked with brown. Immature. W hole body 
brownish ; tip of tail blackish ; bill blackish. Associates with the 
Herring Gull and difficult to distinguish from it except by its 
smaller size ; not as small as a Kittiwake. 
Breeds. North of New England. A common winter visitor on 
the southern, and a migrant along the northern coast. 
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