NORTH AMERICAN BIRDS EGGS. 



27 



42. Glaucous Gull. Larus glaucus. 



Range. Arctic regions, south in winter to Long Island, the Great Lakes, and 

 San Francisco Bay. 

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



largest of the Gulls, be- ^^^^^^^^^^ 



ing2S inches in length. ^ ; 



.Mantle light gray; it is 



distinguished by its ^d >-* H^. 



si/e and the primaries, 



which are white to the 



tips. A powerful bird 



that preys upon the 



smaller Gulls and also 



devours the young and 



of smaller birds. 

 They nest on the 

 ground on the islands 

 and shores of Hudson 

 Bay, Greenland etc. 

 The nest is made of sea- 

 weed, grass and moss 

 mid is generally quite 

 bulky. The two or 

 three eggs are laid in 



June. They are of various shades of color from alight drab to a brownish, and 

 arc spotted with brownish and black. Size about 3x2.20. Data. TI^ 

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



[Buffy brown. 1 



-Iceland, 



42 



42. I. Point Barrow Gull. Larus barrovianus. 



Range Northwest coast from Bering Sea to Point Barrow. 



This species is almost 

 identical with the Glau- 

 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 built 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 

 :! x 2.10. Data. II er- 

 schel Is. Alaska. July 1, 

 the ground. Three eggs. 



JP 



I 



Buff. 



1WU. Nest made of seaweed and 

 Collector, Rev. I. (>. Stringer. 



grass; placed on 



