."254 



Lams marinus. GREATER BLACK-BACKED GULL. 



Xarus marinus Limueus, Syst. Nat. 1758, p. 136 : 



Sweden. 



Larus marinus Linn.; B. O. U. List, 1st ed. 1883, p. 189; 



Sounders, Cat. Birds B. M. xxv. 1896, p. 241 ; id. Manual, 



2nd ed. 1899, p. 677. 

 Marimis=oi the sea. 



Distribution in the British Islands. A Resident, breeding on 

 the coasts and outlying " stacks/' also inland and on islands 

 in lakes. It is found locally and in small numbers on the 

 south-west and west of England and Wales and the Scilly 

 Islands, commonly in Scotland and Ireland, and on the 

 islands to the west and north. The largest colony in our 

 Islands is probably that on the Holm of Noss, Shetlands. 

 In winter it is widely distributed on all our coasts. 



General Distribution. The Greater Black-backed Gull 

 'breeds in Iceland, the Faeroes, and north Europe, east to 

 the lower Petchora and probably to the Yenesei, and south 

 to about 50 N. latitude on the north-west of France : also 

 in Greenland and North America from North Devon Island 

 southwards through Labrador to Maine and Nova Scotia. 

 In winter it occasionally visits the Mediterranean and Black 

 :seas as well as inland waters in small numbers ; also the 

 Canary Islands and the A/ores ; in America it occasionally 

 ranges south to the Bermudas and to Florida. 



Lams fuscus. LESSER BLACK-BACKED GULL. 

 Larus fuscus Linmt'us, Syst. Nat. 1758, p. 136 : Sweden. 



iLarus fuscus Linn.; B. O. U. List, 1st ed. 1883, p. 189; 

 Sounders, Cat. Birds B. M. xxv. 1896, p. 250 (part.) ; id. 

 Manual, 2nd ed. 1899, p. 675 (part). 

 .Fuse ws= dark, dusky. 



Distribution in the British Islands. Probably a Bird of 

 Passage, it has been noticed in the Shetland Islands and on 

 the Firth of Forth, and doubtless occurs elsewhere on the 

 British coasts on mioration. 



