RED-LEGGED KITTIWAKE. 
41. Rissa brevirostris. 16 inches. 
This Kittiwake is very much like the former, excepting 
that the legs are bright red, the mantle is darker and the 
bill shorter. They usually nest in separate colonies from the 
former, and can be readily identified when in flight by the 
red legs. 
Nest. —They have been found abundantly on the islands of 
the Bering Sea, nesting on the higher ledges and cliffs. The 
color of the eggs is buffy or brownish, blotched and spotted 
with lilac and shades of brown. 
Range. —Northwestern coast and islands of Bering Sea. 
GLAUCOUS GULL. 
42. Lams hyperboreus. 28 inches. 
This is one of the largest of the Gulls; mantle light gray; 
it is distinguished by its size and the primaries, which are white 
to the tips. It is a powerful bird that preys upon the smaller 
Gulls, eating both the eggs and young. 
Nest. —Of seaweed on ledge of sea cliff, eggs three in num¬ 
ber, in shades of light drab to brown, spotted with brown and 
black. 
Range. —Arctic regions, in winter south to San Francisco Bay. 
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