604 A lexander Goodman More Scientific Papers. 



*LarilS canus (Linn.) Common Gull. 



Common in winter. A few remain to breed both inland and on the 

 sea-coast, chiefly in the West of Ireland, viz., in the counties 

 of Kerry, Mayo, Sligo ?, Donegal, and Galway. Nests on 

 islands in lakes, as on Lough Mask ; on grassy slopes, as in 

 Achill ; and cliffs, as in Kerry and Donegal. 



*Larus argentatus (Gmel.) Herring Gull. 



Resident and common. Breeds all round the coast. 



*Larus fuscus (Linn.) Lesser Black-backed Gull. 



Resident. Breeds in small numbers on lakes and more numerously 

 on various parts of the coast. Much less numerous than the 

 Herring Gull, and very local in the breeding season. 



*Larus marinus ((Linn.) Great Black-backed Gull. 



Resident. Breeds on the sea-coast in small numbers ; becomes 

 more numerous in winter. 



Larus glaucus (O. Fabricius). Glaucous Gull. 

 Rare and uncertain winter visitor. 



Larus leucopterus (Faber.) Iceland Gull. 

 Very rare and accidental visitor in winter. 



*Rissa tridactyla (Linn.) Kittiwake Gull. 



Resident and breeds abundantly round the coasts. Many remain 

 all winter. 



Pagophila eburnea (Phipps). Ivory Gull. 



Extremely rare and accidental visitor. Two examples have been 

 obtained and others observed. (Thompson.} Mr. R. Warren 

 now believes a mistake was made as to the bird seen 2ist 

 September, 1862, near Moyview in Sligo. (Dubl. Nat. Hist. 

 Soc., Proceedings, iv., p. 62.) An Ivory Gull, belonging to the 

 late Dr. J. R. Harvey's collection, now in Queen's College, 

 Cork, was obtained, as Mr. Warren informs me, in Bantry 

 Bay. One picked up dead by a coastguardsman in Achill 

 (Thompson), was not sufficiently identified. The Iceland Gull 

 is often mistaken for it. 



Stercorarius catarrhactes (Linn.) Great Skua. 



Very rare visitor, chiefly in autumn. One recently obtained in 

 Dublin Bay is in the Museum. 



Stercorarius pomatorhinus (Temminck). Pomatorhine Skua. 



Regular autumnal visitor in varying numbers, usually seen in October. 



Stercorarius crepidatus (Glm.) Richardsons's Skua. 



Regular visitor in autumn. Has occurred also, less frequently, in 

 spring. 



Stercorarius parasiticus (Linn) Buffo n's Skua. 



Autumnal visitor in small numbers and less frequent than Richard- 

 son's. Has also occurred in spring. 



