EGGS OF SOMERSETSHIRE BIRDS. 173 
PELICANIDAE. PHALACROCORAX. 
101.—Phalacrocorax carbo.— Common Cormorant. 
A few of these birds breed on some of the islands in the 
Bristol channel. They produce five or six eggs, 
2 inches 9 lines by 1 inch 7 lines, of a pale skimmed 
milk blue, covered with a white chalky substance 
which may be easily scraped off. 
102.—P. cristatus.— Shag or Green Cormorant. 
Eggs as those of the preceding, but differing in size, being 
only 2 inches 5 lines by 1 inch 5 lines. 
LARIDAE. STERNA. 
103.—Sterna hirundo.— Common Tern. 
Eggs of yellowish stone colour, blotched and spotted with 
ash grey and dark brown, 1 inch 8 lines by 1 inch 2 
lines. 
104.—S. arctica.— Arctic Tern. 
Eggs precisely similar to those of the preceding bird except 
in size, these being 1 inch 7 lines by 1 inch 1 line. 
LARUS,. 
105.—Larus ridibundus.— Black-headed Gull. 
Eggs extremely variable, in shape, size and colour; collec- 
ted for food in various parts of England, especially at 
Scoulton Mere, in Norfolk. 
106.—L. rissa.— Kittiwake. 
The eggs of this common bird are three in number, of a 
stone colour, thickly spotted with grey and light 
brown, 24 inches by 1 inch 7 lines. 
107.—L. canus.-— Common Gull. 
Eggs of a dark blue brown, spotted with darker brown and 
black, 2} inches by I inch 14 line. 
