CORMORANTS. 75 
Fam. PELECANID &. 
CORMORANT. Graculus carbo (Linneus). 
Resident and generally distributed, but most nume- 
rous on the northern and western coasts. 
SHAG. Graculus cristatus (Faber). 
Resident, but not so numerous as the last named, 
except perhaps on the northern and western isles of 
Scotland. 
GANNET. Sula bassana (Linneus). 
Resident. ‘The breeding-stations are :—Lundy Is- 
land in the British Channel; Ailsa Craig, off Ayr- 
shire; St. Kilda, in the Outer Hebrides; Suliskerry, 
to the west of Hoy, in Orkney; and the Bass Rock, 
in the Firth of Forth. 
Fam. LA RID &. 
COMMON TERN. Sterna fluviatilis, Naumann. 
A summer visitant, and generally distributed. This 
bird has generally been regarded as the Sterna hirundo 
of Linneus; but the species described by him under 
that name is evidently the Arctic Tern, as may be 
inferred from his description of the bill:—* rostrum 
subulatum, versus apicem compressum, rectum, coc- 
cineum, uti et pedes.” 
