340 



UTAMANIA TORDA. THE COMMON RAZOR-BITX 



RAZOR-BILL. COMMON AUK. GURFEL. FALC. MURRE. MARROT. 



Fig. S3. 



Alca Torda. Linu. Syst. Nat. I. 210. Summer. 



Alca Torda. Lath. Ind. Omith. II. 793. 



Razor-bill. Mont. Ornith. Diet. Adult in summer. 



Auk, Black-billed. Mont. Ornith. Diet, and Supplt. Young in winter. 



Alca Pica. Linn. Syst. Nat. I. 210. Winter. 



Pingouin macroptcre. Alca Torda. Temm. Man. d'Ornith. II. 936. 



Razor-bill Auk. Alca Torda. Selby, Illustr. II. 435. 



Utamania Torda. Bonap. Comp. List. 66. 



Length about seventeen inches ; wings reaching to the 

 middle of the tail, which has tivelve feathers ; hill with four 

 transverse grooves, one of which is white. Adult in summer 

 with the head and upper part of the neck all round hrownish- 

 hlack, the upper parts greenish-black, the lower white ; a nar- 

 row line from the bill to the eye, and the terminal margins of 

 the secondary quills white. Adidt in winter with the upper 

 parts of the head and nape greijish-blach ; the throat and 

 sides of the head white, loith a dusky band behind the eye ; 



