RARER BRITISH BIRDS. 
49 
CINEREOUS SHEARWATER. 
Pvffinus Cinereus. Stephens. 
Mr. Selby, in his “ Illustrations of British Ornithology,” 
mentions a specimen of this bird, killed upon the coast of 
Northumberland, and now in his possession. With such high 
authority for its introduction, we cannot do otherwise than 
place it in the present work. Although a very rare visitant 
in this country, it appears not to be uncommon in the Mediter- 
ranean, and on the southern coasts of the European Continent. 
Mr. Selby is of opinion, that the bird before us may have 
occasionally been killed in this country before, but confounded 
with the Manks Shearwater. 
The following are the principal distinctive marks : — P. Ci- 
nereus is about a third larger, has the bill more curved and 
more strongly hooked than in P. Anglorum. The upper parts 
of the plumage are dusky ash, with the margins and tips of 
H 
