80 Mr. A. G. More on the Distribution of Birds 
a few scattered localities from Sussex to Orkney. As Macgilli- 
vray remarks, most of its breeding-stations are on the east side 
of Great Britain ; and this is also the case with the other Terns, on 
account of the greater prevalence on the east coast of the low 
sandy shores and islets which these birds prefer for their nests. 
HyprocHE.ipon rissipges (G. R. Gray). Black Tern. 
Provinces III. IV. [ VIII.]. 
Subprovinces 7, (10), 11, (12), (19). 
Lat. 51°-53°. “Germanic” type. Not in Ireland? 
This is one of the birds whose numbers have greatly dimi- 
nished of late years; for although Mr. Hewitson describes it as 
“abundant in some parts of the counties of Cambridge and 
Lincoln,” I believe that it has nearly, if not entirely, ceased to 
breed in this country. 
A pair or two are considered still to nest occasionally in Kent 
and Norfolk ; but I am assured by various correspondents that 
the Black Tern has become altogether extinct in the counties of 
Suffolk, Cambridge, Huntingdon, and Lincoln. 
Larus ripipunpus (Linn.). Black-headed Gull. 
Provinces III. [V. V.? VIII.-X VIII. 
Subprovinces 7, 8, (10), 11, 15 ?, 19, 21, 22, 24-38. 
Lat. 50°-61°. “Scottish” (or “ British ”) type. 
A few breeding-stations occur in the south of England, in the 
counties of Kent, Essex, Norfolk, and Lincolnshire; but the 
localities for the bird are much more numerous in the north. 
Plott mentions a locality in Staffordshire, but I do not know 
whether the birds still frequent this county during the breeding- 
season. 
Rissa TRIDACTYLA (Macyill.). Kaittiwake. 
Provinces I. II.? X.-X VIII. 
Subprovinces 1-3, 4?, 22, 24, 25, 27-38. 
Lat. 50°-61°. “ Scottish ” type, or Northern. 
On the south coast, the Kittiwake has been stated to breed 
in Dorsetshire ; but I have been unable to obtain any confirma- 
tion of this assertion. It is certainly not found in the Isle of 
Wight during the nesting-season. 
