ICELAND GULL. 



43. Larus leucopterus. 25 in. 



Pale mantle and all white primaries. Just 

 like the last species except in size. 



Range. Even more boreal than the Glau- 

 cous Gull. Winters south to Long Island. 



KUMLIEN GULL (not figured). 

 45. Larus kumlieni. 27 in. 



Very similar to Iceland Gull but the pri- 

 maries are conspicuously gray with white 

 tips. 



Range. Breeds in Cumberland Sound. 

 South in winter to Long Island. 



GREAT BLACK-BACKED GULL. 

 47. Lanis mar inns. 29 in. 



Largest of our gulls. Back slaty-black. 

 White tips to primaries, secondaries and 

 scapulars. Young mottled with dusky brown. 



Note. A hoarse Jia-Jia and a sharp keouw. 



Nest. Three grayish eggs, spotted with 

 blackish and lilac. 



Range. Breeds north from Nova Scotia. 

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