North American Birds Eggs. 



27 



*. 



42. Glaucous Gull. Laiim glaucus. 



Range. — Arctic regions, south in winter to Lfing Island, the Great Lakes, 

 San Francisco Bay. 



This Gull shares with tlie Great Black-backed Gull the honor of being 

 largest of the Gulls, be- 

 ing 28 inches in length. ^, /" ;<'' 

 Mantle light gray; it is 

 distinguished by its 

 size and the primaries, 

 which are white to the 

 tips. A powerful bird 

 that preys upon the 

 smaller Gulls and also 

 devours the young and 

 eggs of smaller birds. 



They nest on the 

 ground on the islantls 

 and shores of Hudson 

 Baj', Greenland etc. 

 The nest is made of sea- 

 weed, grass and moss 

 and is generally quite 

 bulky. The two or 

 three eggs are laid in 



June. They are of various shades of color from alight drab t( 

 are spotted with brownish and black. Size about 8 x '2.20. Data.— Icel 

 June 8, 1888. Nest of seaweed on ledge of sea cliff. Three eggs. 



anfl 

 the 



t. 



, Asi 



[Buffy brown. 



brownish. 



and 

 ind. 



N^ 



Vj 



42. I. Point Barrow Gull. Larua burrovianus. 



Range 



-Northwest coast from Bering Sea to Point Barmw. 



Thif 



%i 



[Buff 



1900. Nest made of seaweed and 

 Collector, Rev. I. O. Stringer. 



grass; placed on 



pecies is almost 

 identical with the Ghiu- 

 cus Gull, averaging per- 

 haps a trifle smaller. 

 Its standing as a dis- 

 tinct species is still 

 questioned and has not 

 yet been decided satis- 

 factorily. Early in June 

 their nests are l>uilt on 

 remote islands in Ber- 

 ing Sea. These nests 

 are the same as the last 

 species, large piles of 

 vegetation, hollowed on 

 top for the reception of 

 the eggs. The eggs have 

 the same variations in 

 color and markings as 

 the Glaucus Gull. Size 

 3 X 2.10. Data. — Her- 

 schel Is. Alaska. Julyl, 

 the ground. Three eggs. 



