THE BIRDS OF NORTH UIST 23 



Stercorarius parasiticus, Linn. Buffon's Skua. An example 

 procured at the same place as the Pomatorhine Skua on 1 7th 

 October 1912. Also in my collection. 



Alca torda, Linn. Razorbill. Uncommon, but not infrequent 

 in Lochmaddy Bay, Loch Eport, and near Weaver's Point. Does 

 not nest in North Uist to my knowledge. 



Uria troile, Linn. Common Guillemot. (B.) Resident and 

 fairly common. Breeds sparingly. The bridled variety is not 

 uncommon. 



Uria gry lie, Linn. Black Guillemot. Fairly common, but keeps 

 well out to sea, and is seldom seen save in small flocks. 



Merguhis alle, Linn. Little Auk. Fairly common winter visitor, 

 in rough weather only. Most noticeable around Lochs Eport and 

 Blashaval. 



Fratercula arctica, Linn. Puffin. A rare winter visitor ; though 

 commonly washed up dead a victim of the north-west gales. 



Colymbiis glacialis, Linn. Great Northern Diver. A fairly 

 common spring migrant ; a few pairs being seen during the 

 summer months. Rare during the winter. 



Colymbus arcticus, Linn. Black-throated Diver. (B.) Fairly 

 common, though a decreasing resident. The nesting sites of this 

 bird are more or less local though I will not mention the precise 

 district for obvious reasons. 



Colymbus septentrionalis, Linn. Red-throated Diver. (B.) A 

 fairly common breeding species seldom met with in winter. This 

 is our commonest member of the Colymbidse. 



Podicipes anriti/s, Linn. Slavonian Grebe. Uncommon, but 

 not infrequent in some localities during late autumn and winter. 

 Met with a pair on a reedy loch at Griminish on 14th August 1912 

 which date seems very exceptional. Peel also obtained this grebe 

 in North Uist. 



Podicipes fluviatilis, Tun. Little Grebe. (B.) A fairly 

 common resident ; has increased considerably of late years. The 

 fact that frost drives this bird to the coast is generally accepted, 

 but I may add that frost or no frost this species is always more 

 abundant on the coast during December and January. As the 

 lochs in North Uist are seldom frozen, this trait can hardly be 

 accounted for. 



Procellaria pelagica, Linn. Storm Petrel. Fairly common 

 winter visitant ; considerable numbers are seen off the coast. 

 Occasionally washed up dead. 



Procellaria leiicorrkoa, Vieillot. Leach's Petrel. Rare ; though 

 occasionally seen off shore. An example obtained between 



