BLACK GUILLEMOT. 463 



the northern parts of the British Islands; but like the 

 other species of this genus, it is an open sea bird, frequent- 

 ing the rocks only for a limited period, during the season 

 of incubation, and is seldom or ever found inland. It is 

 local, remaining all the year in such situations as suit its 

 habits. I have seen this bird at the end of summer in 

 Christchurch Bay, on the Hampshire coast ; it is also 

 occasionally procured on the coasts of Dorsetshire, Devon- 

 shire, and Cornwall. Pennant mentions that in his time it 

 was known to breed at several places on the coast of 

 Wales. Mr. W. Thompson includes it, at this time, 

 among the resident species of Ireland. Mr. J. Macgil- 

 livray says it is found on all the rocky coasts of the islands 

 of the Outer Hebrides, but nowhere numerous ; and Mon- 

 tagu mentions that Mr. Henry Boys saw both old and 

 young in the month of August at Fowlesheugh, near 

 Stonehaven. On the coasts of Durham and Northumber- 

 land Mr. Selby considers it a rare bird, but it breeds upon 

 the Isle of May, at the mouth of the Frith of Forth, and 

 was seen by some of the natural history party in Suther- 

 landshire about the caves of the mouth of the Durness 

 Frith. Professor Macgillivray says " the Black Guillemot 

 sits lightly on the water, paddles about in a very lively 

 manner, dives with rapidity, opening its wings a little, like 

 the other species, and moves under water with great speed." 

 Mr. Salmon, in his notes on eggs and birds found in 

 Orkney in 1831, says, this species, which is there called 

 the Tyste, differs from the Common Guillemot, in not 

 resorting to the same spots for the purpose of incubation ; 

 and its principal place of breeding is upon a small holm, 

 lying to the eastward of Papa Westra, where it is very 

 numerous, and would scarcely move off the rocks when 

 approached. In every instance two eggs were invariably 



