KITTIWAKE. 



40. Rissa tridactyla. 16 in. 



White with a gray mantle, black tips to 

 the wings, yellow bill and black feet. In 

 winter the back of head is washed with gray. 



Note. A sharp keet-a-wake, keet-a-icake. 



Nest. Of seaweed on rocky ledges. Eggs 

 olive-gray, with black markings. 



Range. Breeds north from the Gulf of 

 St. Lawrence. Winters south to N. J. 



GLAUCOUS GULL. 

 42. Larus hyperboreus. 28 in. 



Mantle light pearl-gray. Primaries white, 

 with no black markings. Feet flesh color. 

 Young birds lightly barred with brownish. 

 One of the largest and most powerful gulls. 

 Devours eggs and young of smaller birds. 



Nest. Of grass and seaweed on the ground. 

 Eggs brownish-gray with black markings. 



Range. Breeds on Arctic coasts and is- 

 lands. Winters from Greenland and the 

 Aleutians south to Long Island and Cal. 

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