ALCINJE. URIA. 
213 
is formed, the egg being deposited on the bare rock. It is 
extremely large, three inches and a quarter in length, two 
inches in breadth, pear-shaped, roughish on the surface, white, 
greenish-blue, or verdigris-green, marked with lines and spots 
of dusky. The young seldom go to the water until well 
grown. By the middle of September young and old have left 
the breeding-places, and dispersed over the seas. Their food 
consists of small fishes and Crustacea. They are not easily 
shot on the water, as they dive very rapidly ; but on the rocks 
can be procured in abundance, as they often sit close together, 
and allow a near approach. Their flight is direct, rapid, per- 
formed by quick continued beats of the wings. They are fre- 
quently seen flying in short strings of from three to ten indi- 
viduals. 
Murre. Marrot. Murse. Lungy. Lavy. 
Colymbus Troile, Linn. Syst. Nat. — Uria Troile, Lath. Ind. 
Ornith. ii. 769. — Uria Troile, Temm. Man. d'Ornith. ii. 921. 
—Foolish Guillemot, MacGillivray, Brit. Birds, v. 
281. Uria Grylle. White-winged Black Guillemot. 
Bill rather slender, shorter than the head, black. In win- 
ter, the feet orange-red ; the prevailing colour of the plumage 
white ; the cheeks, neck all round, lower parts, and rump, be- 
ing of that colour ; the upper part of the head mottled with 
greyish-black ; the feathers of the back tipped with greyish- 
white ; the wings and tail brownish-black, the former with a 
large white patch. In summer, the feet coral -red ; the plu- 
mage entirely black, excepting a patch on the wing, the lower 
wing- coverts, and axillar feathers, which are white. Young 
with the bill dusky, the feet brown ; the plumage as in the 
adult in winter, but more mottled with blackish-grey. 
Male, 13, 22_, 6 T 8 2-, 1 T \, l x ^, l x %, fy. Female, llu, 21. 
This species, prettier and more lively than the Foolish 
Guillemot, is not; so numerous on our coasts as it, but yet 
occurs abundantly in many localities. It does not deposit its 
eggs on the bare rock^ but in crevices, or under large stones 
or blocks. More than twenty years ago, I have frequently 
gathered them in such places. They are often three, but more 
commonly two, regularly ovate, an inch and a half in length, 
greyish-white, bluish-wliite, or yellowish-white, marked with 
blotches, spots, and dots of dark brown, together with faint 
blotches of purplish-grey. The Black Guillemot sits lightly 
on the water, paddles about in a very lively manner, dives with 
rapidity, opening its wings a little, like the other species, and 
flies under water with great speed. In proceeding to a distance, 
