BIRDS. 169 



S. miniita, Linnaeus. Little Tern. Formerly nested on Inch Moan, L. Lom- 

 ond in small numbers (Gray). Occasionally seen and obtained in autumn 



on Ayrshire coast. 

 Xema sabinii (J. Sabine). Sabine's Gull. The late Duke of Argyll believed 



he saw this species nr. Campbeltown 8/1894. One from Sliddery, Arran, 



reached me in the flesh 24/9/1897. 

 Lams Philadelphia, Ord. Bonaparte's Gull. One shot 4/1850, L. Lomond, 



Sir Geo. H. Leith Buchanan. 

 L. minutus, Pallas. Little Gull. Once obtained in Firth of Clyde (Selby, r. 



Gray) ; once seen L. Lomond (Gray). 

 L. ridibundus, Linnaeus. Black-headed Gull. Many "gulleries" in inland 



localities. The large colony formerly occupying Inch Moan, L. Lomond, 



was broken up about 1889. 

 L. canus, Linnaeus. Common Gull. Nests at L. Doon (Eagle Clarke), Bute 



and Inchmarnock (Robertson), and several rocky islets in L. Fyne. Fairly c. 

 L. argentatus, Gmelin. Herring-Gull. A few pairs nest on Ailsa Craig, 



Large colonies on Glunimore I., and Sheep I. off Mull of Cantyre. 



Considerable flocks sometimes appear inland in winter. 

 L. fuscus, Linnaeus. Lesser Black-backed Gull. Colonies on Ailsa Craig 



and Inch Moan, L. Lomond. C. Glasgow Harbour, estuary and Firth 



in summer. R. in winter. 

 L. marimis, Linnaeus. Great Black-backed Gull. Nests on Glunimore I. 



off Mull of Cantyre, and possibly Ailsa Craig. Not c. 

 L. glaucus, Fabricius. Glaucous Gull. 

 L. leucoptems, Faber. Iceland Gull. These two occasionally visit the 



Firth in winter. 

 Eissa tridactyla (Linnaeus). Kittiwake Gull. A very large nesting colony 



on Ailsa Craig. 



Pagophila eburnea (Phipps). Ivory Gull. A r. winter visitor to the Firth. 

 Stercorarius pomatorhinus (Temminck). Pomatorhine Skua. 

 S. crepid.atus (Gmelin). Arctic or Richardson's Skua. These two occur 



occasionally in passage in the Firth in about equal numbers. 

 S. parasiticus (Linnaeus). Long-tailed or Buffon's Skua. An occasional 



straggler. Shot, Dalserf parish, Lanarkshire, forty years since ; now in 



Mr. Drummond Pringle's collection. 



ORDER ALCAE. 

 Fam. Alcidae. 



Alca torda, Linnaeus. Razorbill. C. in estuary and firth, nesting on 

 Ailsa Craig. 



[A. impennis, Linnaeus. Great Auk. The claim of this extinct species 

 rests upon the bird which regained its liberty off the S. of Arran in 

 1821, and the tradition of one having been washed ashore nr. Gourock 

 about the same time, which may have been the same individual (Gray).] 



IJria troile (Linnaeus). Guillemot. C., many nesting on Ailsa Craig. 



U. grylle (Linnaeus). Black Guillemot. Two pairs at least nest on Gluni- 

 more I. off the Mull of Cantyre ; a few pairs almost certainly on the 

 cliffs in the S. of Ayr. 



Mergulus alle (Linnaeus). Little Auk. Occasionally in winter under stress 

 of weather. 



Fratercula arctica (Linnaeus]. Puffin. C. in the Firth in summer, many 

 nesting on Ailsa Craig. 



ORDER PYGOPODES. 

 Fam. Colymbidae. 



Colymbus glacialis, Linnaeus. Great Northern Diver. Probably not r. 

 from autumn to spring in the Firth. 



