248 
LARINJE. LARUS. 
wings a little longer tlian the tail ; total length from twenty 
to twenty five inches. In winter, the hill wine-yellow, the 
lower mandible with an orpiment-red patch, the margins of 
the eyelids yellow ; the feet flesh-coloured ; the back and 
wings light bluish-grey ; quills all white at the end ; head 
and neck white, streaked with very pale brown ; all the other 
parts pure white. In summer, the bill gamboge-yellow, the 
patch on the lower mandible orange-red, as are the edges of 
the eyelids ; the head and neck pure white, the other parts 
as in winter. Young with the bill brownish-black toward 
the end, at the base pale flesh-coloured ; the general ground- 
colour of the plumage pale yellowish-grey ; the head and 
neck longitudinally streaked with very pale brown; the up- 
per parts with transverse irregular bands ; the lower con- 
fusedly mottled and barred with pale brown and yellowish- 
white ; the quills greyish-white, irregularly marked with pale 
brown ; the tail greyish-white, spotted and barred with pale 
brown. 
Male, 24, 50, 17L If? 2^, 2J-, 2 T ^-. 
Dr Edmondston, who first observed this species in Britain, 
described it in March 1823, proposing for it the name of Larus 
island icus, which he had previously given to Larus glaucus. 
"With us it is only a winter visitant, its summer haunts being 
in the Arctic regions. 
Iceland Gull. 
Larus islandicus, Edmondston, Mem. Wern. Soc. iv. 506. 
—Larus arcticus, MacGillivray, Mem. Wern. Soc, . v. 268. — 
Larus leucopterus,Temm. Man. d’Ornith. iv. 467.- — Larus leu- 
copterus, White- winged Gull, MacGillivray, Brit. Birds, v. 
307. Larus canits. Green-billed Gull. 
Bill an inch and a half along the ridge, which is gently 
decurved toward the end, five- twelfths high at the angle, 
which is little prominent ; tarsus two inches long ; wings 
surpassing the tail by two inches. In winter, the bill grey- 
ish-green shaded into ochre-yellow at the end ; margins of 
eyelids brown ; feet deep greenish-grey ; back and wings light 
bluish-grey ; the quills largely tipped with white, the outer 
five in part black, two of them with a large white spot to- 
ward the end ; head and hind-neck white, with brownish- 
grey streaks and spots ; all the other parts pure white. In 
summer, the bill greenish-yellow, margins of eyelids vermi- 
lion ; head and neck pure white, the other parts as in winter. 
Young with the bill brownish- black, flesh-coloured at the 
base ; edges of eyelids dusky ; feet purplish flesh-colour ; 
