BIRDS OBSERVED OX THE CLYDE. 69 



The Common Gull (Z. canus, Linn.) I have seen but once, 

 on 23rd December, 1899, at a drain below Stockwell Bnd<re on 

 the left bank. ° 



The Herring-Gull (L. argentatus, Gmelin) is a regular winter 

 visitor, in considerable numbers, among the shipping in the 

 harbour, and flocks of several hundreds are to be seen occasionally 

 at the same season, east of the city. 



The Lesser Black-backed Gull (Z. fuscus, Linn.) is repre- 

 sented by a colony which appears in the harbour towards the 

 end of March and spends the summer there. It is regularly 

 seen on the river, east of Glasgow, during the summer. 



The Kittiwake {Bissa tridactyla, Linn.) I have seen but 

 once, on 19th April, 1899, a mature bird, just above Bogle's Hole 

 Ford. [On 27th April, 1904, I saw an immature example on 

 the river below Cambuslang.] 



The Razor-bill {Alca torda, Linn.) I have seen twice in the 

 harbour-first, on 3rd February, 1894, during a westerly gale 

 the river being flooded and a high tide on ; and, secondly, on the 

 8th of October of the same year during a pretty dense fog on 

 the river. 



The Little Grebe {Podicipes Jluviatili, (Tunstall)) closes the 

 list of eighty-six species. Mr. Wilson has reported two occurrences 

 -one shot near the Balloch Burn on 25th December, 1899, and 

 another seen near Cambuslang, 26th December, 1902. 



The absence of some species from the list which might 

 naturally be expected to appear in it, and the small number 

 of others in some cases recorded, is in part at least to be 

 explained by the banks of the river being used as a thorough- 

 fare throughout their length, and frequently - on summer 

 bundays, for instance-being crowded with pleasure-seekers. 



