302 A HANDBOOK OF EUROPEAN BIRDS. 
rr 
Order ALC. 
Family ALCIDA. 
Genus ALCA. 
RAZORBILL. 
Alca torda Zznz. 
Adult (Summer): Head, throat and upper parts black, in 
parts slightly tinged with green, browner on wings and tail ; 
under parts below the throat, ¢ps of secondaries, and a narrow 
line from top of bill to the eye pure white ; bill black, crossed in 
the centre of each side dy a white band; legs and feet nearly 
black ; irides hazel-brown. Length 17 inches; culmen 1°45 ; 
wing 7°5 to 7°75; tarsus 1°2. 
Adult (Winter): Chin and throat white ; above browner. 
Young: Have much less elevated bills, are browner above 
and have the white tips to the secondaries less pure ; white 
stripe before the eyes almost obsolete. 
Distribution : Inhabits most of the coasts of the Palearctic 
and Nearctic regions. 
Habitat : Strictly oceanic. 
Genus URIA. 
COMMON GUILLEMOT. 
Uria ‘troiwle {Zz77z.). 
Adult (Summer) : Head, neck and upper parts blackish- 
brown, with a slaty tinge on the back ; wader parts below throat, 
and tips of secondaries zAzte; b2ll almost untform black; legs 
and feet olivaceous-brown ; irides hazel-brown. Length 17°5 
inches ; culmen 1°9; wing 7°5; tarsus 1°4. 
Adult (Winter): Under parts, chin, throat and sides of 
