LONG-WINGED SWIMMERS 

 42.1. 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- 



!CqB tinct species is still 



- Ite questioned and has not 



41 yet been decided satis- 



l|lf, t 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 varia- 

 tions in color and mark- 

 ings as the Glaucus 

 Gull. Size 3 x 2.10. 

 Data. Her sch el Is., 

 Alaska, July 1, 1900. Nest made of seaweed and grass; placed on the ground. 

 Three eggs. Collector, Rev. I. O. Stringer. 



White 



43. 



ICELAND GULL. Larus leucopterus. 



Range. Arctic regions, south in winter to the Middle States. 

 This Gull in appearance is precisely like the two preceding ones but is con- 

 siderably smaller; 24 inches in length. A very common bird in the north, 

 breeding in colonies of thousands on many of the islands. It is regarded as 



one of the most common 



-*^ ^r*s-^^ of the larger Gulls in Ber- 



,> ^V- ing Sea and also nests 



'-.^ commonly in Hudson Bay 



.y'#*' ** -, and Greenland, as well as 



'* ' . .-''* ^l % *-' *"'**''% ; ^ in the Eastern Hemis- 



^ "AiJt "'* -\'i^ ," - s Wi phere. They nest indiffer- 



ently on high rocky cliffs or 

 on low sandy islands. Ex- 

 3ept when the eggs are laid 

 in a sandy depression in 

 the soil, quite bulky nests 

 are made of seaweed and 

 moss. The eggs are laid 

 about the first of June; 



Greenish brown thev numbei> tW ^ thl i ee 



and have a ground color 



of brownish or greenish brown and are blotched with umber. Size 2.80 x 1.83. 

 Data. Mackenzie Bay, Arctic America. June 18, 1899. Nest made of seaweed 

 and grass on an island in the bay. 



41 



