5 6 The Scottish Naturalist. 



They breed along the foot of the rock, but leave in July, as 

 soon as the young are able to go with them. 



The Ringed Gulliemot ( Uria lachrymam) has been ob- 

 served on the rock, but is rather a scarce species. 



The Black Gulliemot ( Uria grylle) has been obtained on 

 several occasions in the neighbourhood, but we have no 

 authority for stating that it breeds on the Bass. 



- The Razor-bill (Alca tor da) is very common, arriving and 

 departing along with the Gulliemots. 



The Little Auk (Mergulus melanaleucos) has been several 

 times observed, at various seasons of the year, and we have 

 seen specimens taken on the coast in the neighbourhood of 

 the Bass after severe storms. 



The Puffin (Fratercula arctica) is common, breeding in 

 holes in the rock. They swim about in small flocks, but are 

 easily frightened by the approach of a boat. 



The Common Cormorant ( Phalacrocorax carbo) and the 

 Shag (Phalacrocorax graculus) are found roosting on the rock 

 in large numbers in the autumn evenings, coming, no doubt, 

 from considerable distances to the shelter of the cave. 



The Peregrine Falcon ( Falco peregri?ius •). The Bass has for 

 many years been frequented by Peregrines, which find suitable 

 nesting places on the steep ledges of the rock, and abundance 

 of prey in the Gulliemots and other sea birds. In the breeding 

 season of 1872, we observed a male Falcon seated on a sharp 

 point of rock, unconcerned, and undisturbed, amid the din of 

 thousands of Gannets and Gulls flying around him. 



The above is by no means a complete catalogue of the birds 

 of the Bass, but only notes of those observed or heard of from 

 authentic sources, while visiting this interesting spot. On the 

 top, the Blackbird and Wheatear are often to be met with, while 

 the cave or tunnel which runs through the rock is the retreat 

 of Rock Doves. 



Those ornithologists who have not yet been on the Bass, 

 have for themselves a pleasure in store, and we know of no way 

 of spending a holiday better than in visiting the rock during 

 the breeding season. 



Arden House, Alexandria, December, 1872. 



