ALLE. URIA. 167 



Arctica aile, Hewitson, Eggs of Brit. Birds, ii. p. 465, pi. cxxvii. fig. i 



(1856). 

 Alle nigricans, Baird, Brewer Sf Ridgw. Water Birds N. Am. ii. p. 40v> 



(1884). 

 Alle alle, Grant, Cat. Birds B. M. xxvi. p. 569 (1898) ; Sharp?,, Hand-l. 



i. p. 130 (1899). 



The eggs of the Little Auk are very regular ovals, fairly smooth 

 to the touch, but without any gloss. They are of a pale greenish 

 blue, most frequently unmarked. A few specimens, however, 

 exhibit some specks of yellowish brown and sometimes also some 

 streaks and markings of the same colour round the larger end. 

 They measure from 1*75 to 2-07 in length, and from 1-28 to 1*35 

 in breadth. 



4. Greenland. Salvin-Godman Coll. 



4. Greenland (R. Milller). Seebohm Coll. 



4. Greenland, June (E. Feneker}. Seebohm Coll. 



2. North Greenland (H. Hawkins). Seebohm Coll. 



2. Godhavn, Greenland. Seebohm Coll. 



1. Godhavn, Greenland. Seebohm Coll. 

 4. Gronne, -Greenland, 25th June. Seebohm Coll. 



2. Gronne, 3rd July. Seebohm Coll. 



Genus UEIA, Briss. 

 Una troile (Linn.}. 



Uria ringvia, Thien. Forfyflanz. ges. V'6g. tab. iic. fig. 1, a-c (1845-54) ; 



Baedeker, Eier Eur. Vog. tab. 69. fig. 1 (1855-63). 

 Una troile, Thien. Fortyflanz. ges. Vog. tab. iic. fig. 2, a-f (1845-54) ; 



Hewitson, Eggs of Brit. Birds, ii. p. 455, pi. cxxiv. (1856) ; Baird, 



Brewer $ Ridgtv. Water Bird* N. Am. ii. p. 477 (1884) ; Dix&n, 



Ibis, 1885, p. 89 ; Grant, Cat. Birds B. M. xxvi. p. 573 (1898) ; 



Sharp* , Hand-l i. p. 130 (1899). 



Uria lorn via, Baedeker, Eier Eur. Vog. tab. 15. fig. 1 (1855-63). 

 Alca troile, Dresser, Birds Eur. viii. p. 567 (1877) ; Seebohm, Brit. Birds 



iii. p. 388, pis. 43 & 44 (1885) ; id. Eggs of Brit. Birds, p. 93, pi. 25 



figs. 1-6 (1896), 



The eggs of the Common Guillemot are of a long, narrow oval 

 form, tapering to the small nd, which is not unfrequently enlarged 

 or swollen. The shell is rough in texture and without gloss. 



They vary greatly in colour. The ground is of different shades 

 of blue, green, brown, yellow, pink or buff, and frequently it 

 is white. The underlying markings consist of blotches of grey 

 or pale purple and are seldom prominent. The surface-markings, 

 consisting of blotches, spots, streaks and lines of every conceivable 

 shape, are of different shades of brown, reddish brown, chocolate and 

 yellowish brown, and in many cases they are almost of a deep 

 black. These markings are frequently of great extent and cover 

 quite three-quarters of the surface of the shell ; at other times they 

 are merely spots, leaving almost the entire ground visible. Not a 

 few examples are covered with a close entanglement of lines which 

 produces a beautiful effect. 



