YELLOW-LEGGED HERRING-GULL 429 
Adult winter, male and female.—Differs from the nuptial 
plumage in that the head and neck are streaked with grey. 
Immature, male and female. —'The plumage of the 
young bird is profusely chequered above and below with 
greyish-brown; primaries, brown, with paler inner webs 
and whitish tips; tail, greyish-white, broadly banded with 
brown. The chequered markings are retained until the 
beginning of the third autumn; they are then replaced on 
the back and scapulars by ‘ pearl grey feathers correspond- 
ing in colour with those of the mature birds; the wing- 
coverts, head, neck, and breast, remain dappled and the tail 
banded for a longer period, maturity being gradually 
attained, and not completed until the fifth year. 
Beak. Yellow, red at the angle. 
Freer. Flesh-colour. 
IrwweEs. Bright yellow ; margin of eyelids, pale yellow. 
AVERAGE MEASUREMENTS. 
TOTAL LENGTH ... ... 24 in. Female smaller. 
WING — ae ced we Wiha 
BEAK ee “ee re ok 
TARSO-METATARSUS kee 
Eae sis Noi meen Po Gee 195 Fim: 
YELLOW-LEGGED HERRING-GULL. Larus cachinnans 
(Pallas). 
Coloured Figures.—Dresser, ‘Birds of Europe,’ vol. viii, pl. 602, 
fig. 2. 
This is a south-eastern species which, on one occasion, 
has been recorded from the British Isles. On November 
4th, 1886, a specimen was obtained on Breydon Water, 
Norfolk. It was examined by Mr. Saunders, and is now 
in the collection of Mr. Connop, of Rollesby Hall, Great 
Yarmouth (Saunders, Man. Brit. Birds, 2nd Edition, p. 674). 
DESCRIPTIVE CHARACTERS. ' 
PLUMAGE. Adult male nuptial.—Resembles the nup- 
tial plumage of the Herring-Gull, except that the back and 
1 Vide Cat. Birds Brit. Mus., vol. xxv, p. 268. 
