ALCIN^E. TJRIA. 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^, 1 T 4 , 1 T %, IT\, T\- Female, 11, 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-white, 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, 



