22 THE SCOTTISH NATURALIST 



Sterna minula, Linn. Little Tern. (B.) Fairly common; a 

 few pairs breeding in the more secluded localities. This Tern 

 never seems to nest in company with the Arctic or Common 

 Terns, Small colonies of about half a dozen pairs are occasionally 

 found. 



Larus miuidus, Pall. Little Gull. Has not been recorded 

 since obtained in 1883 by Mr John Macdonald at Newton. 



Larus ridibundiis, Linn. Black-headed Gull. (B.) A common 

 resident ; breeding on the increase. There are no very large gulleries, 

 but small colonies consisting of from 80-120 nests are to be found 

 scattered throughout the island. 



Larus camis^ Linn. Common Gull. (B.) A common resident. 



Larus argentatus,GvL\.. Herring-gull. (B.) Common. Breed- 

 ing in considerable numbers. Colonies of these birds may be found 

 on the islands in Loch Scadavay. 



Larus fuscus, Linn. Lesser Black-backed Gull. (B.) Fairly 

 common ; resident in increasing numbers. This species fluctuates 

 considerably, some seasons being as abundant as the larger Larus 

 marinus. 



Larus marinus., Linn. Great Black-backed Gull. (B.) 

 Common; resident in considerable numbers. 



Larus glaiuus, Fab. Glaucous Gull. Fairly common winter 

 visitor. Most specimens obtained have been immature birds 

 adults being rare. 



Larus leucopterus, Fab. Iceland Gull. Rare. Seldom observed 

 save in very hard weather. Dr Mackenzie has a fine example 

 taken at Scolpaig towards the end of last century. One killed at 

 Vallay 12th October 191 7. 



Rissa fridacfyla, Linn. Kittiwake. (B.) Common, especially 

 during autumn and winter. A few pairs breed in the more suitable 

 localities. 



Megalestris catarrhacfes, Linn. Great Skua. Rare. Examples 

 seen usually in September, but these seldom remain for any length 

 of time. Though between 17th August and 8th September 19 12 

 I had a single bird under observation. Also one observed from 

 30th July to 19th August 1 9 10. 



Stercorarius pomatorhinus, Tem. Pomatorhine Skua. Only 

 know of one example, killed at Scolpaig 17th October 1912. This 

 specimen is now in my collection. 



Stercorarius crepidatus, Gm. Richardson's Skua. (B.) Fairly 

 common resident. Breeds at Newton and Loch Eport. Scarce 

 during the winter. The dark or sooty form of plumage is rarely 

 met with. 



