4oO Major W. R. Thompson on the [Ibis, 



PufRnus puffinus. The Manx Shearwater. 



I have only come across this bird on one occasion. During 

 the hist week in May and the first day or two in June ot' 

 this year (^11)20; it was comparatively plentiful off the sliore. 

 1 do not know that it breeds here, but if not, its appearance 

 at this time of year is certainly curious. I uiay add, how- 

 ever, as a possible explanation of the circumstance, that 

 the period referred to was notic(^able for the large shoals 

 of young pollack, the' herds of porj)oises, and the flocks of 

 gannets in the vicinity. 



Mr. Eagle Clarke found it very numerous oif the Casquets 

 on the 30th of September, 189<S, and Mr. Cecil Smith 

 considers it an occasional wanderer to the Channel Islands. 



Puffinus gravis. The Great Shearwater. 



Mr. Eagle Clarke saw a single example of this bird, 

 among the Manx Shearwaters, off the Casquets on the 

 30th of Se})tember, 1898, and Mr. Cecil Smith includes 

 it as an occasional wanderer to the Islantls, on the strength 

 of having seen a small flock of four or five of them in 

 the (Channel in July 186G, whilst still within sight of the 

 Casquets. I have myself occasionally noticed this bird 

 whilst crossing between Guernsey and Weymouth. 



Colymbus arcticus. The Black-throated Diver. 

 I saw one of these birds in the Roads on the 15th of 

 April, 1914. It was fishing close under the breakwater. 



Colymbus immer. The Great Northern Diver. 



Mr. Cecil Smith says : — " The Great Northern Diver is a 

 common autumn and winter visitant to all the Islands." 

 I have not myself seen it, and think that they have become 

 less numerous since Mr. Smith's time — at any rate in this 

 locality. 



Colymbus stellatus. The Red-throated Diver. 

 Occasionally visits the Roads and Longy Bay in winter, 

 usuall}' during rough weather or after a storm. 



