557 



ALCA TOKDA. 



(RAZORBILL.) 



Alca torda, Linn. Syst. Nat. i. p. 210 (1766). 



Alca pica, Linn, ut supra (1766). 



Le Pingouin, Buff. Hist. Nat. Ois. ix. p. 390, pis. 27, 28 (1783). 



Alca baltica, Gmel. Syst. Nat. i. p. 551 (1788). 



Pinguinus torda (L.), Bonnat. Encycl. Method, i. p. 29 (1790). 



Pinguinus pica (L.), Bonnat. torn. cit. p. 30 (1790). 



Utamania torda (L.), Leach, Syst. Cat. M. & B. Brit. Mus. p. 42 (1812). 



Utamania pica (L.), Leach, ut supra (1812). 



Alca glacialis, C. L. Brehm, Vog. Deutschl. p. 1004 (1831). 



Alca islandica, C. L. Brehm, Vog. Deutschl. p. 1005 (1831). 



Alca halthica, C. L. Brehm, Vogelfang, p. 410 (1855). 



Alca microrhynchos, C. L. Brehm, Vogelfang, p. 410 (1855). 



Coltraiche, Dui-Ewnach, Gaelic ; Pingouin macroptere, French ; Gazza marina, Italian ; 

 Tordalk, Klubalk, Eisalk, German ; Alk, Dutch ; Almindelig Alk, Danish ; Alka, 

 Feeroese ; Akparnak, Akpartluk, Greenlandic ; Alka Klumba, Icelandic ; Bredncebbet Alke, 

 Norwegian ; Tordmule, Swedish ; Ruokki, Finnish. 



Figuroe notabiles. 



D'Aubenton, PI. Enl. 1003, 1004; Werner, Atlas, Palmipedes, pi. 73 ; Kjeerb. Orn. Dan. 

 taf. 52, Suppl. taf. 35 ; Naumann, Vog. Deutschl. taf. 336 ; Sundevall, Svensk. Fogl. 

 pi. 52. fig. 2 ; Gould, B. of Eur. pi. 401 ; id. B. of G. Brit. v. pi. 47; Audub. B. of Am. 

 pi. 214. 



Ad. ptil. ast. capite, collo et corpore toto supra nigris, capitis lateribus et gula, fusco-nigris, linea alba, a basi 

 rostri ad oculos : secundariis albo apicatis : corpore subtus albo : rostro et pedibus iiigris. 



Ad. ptil. Mem. prsecedenti similis, sed capitis lateribus, gula et gutture albis. 



Adult Male in summer (Greenland) . Upper parts of the body and wings glossy black ; sides of the head and 

 the throat brownish black ; a white line passes from the ridge of the upper mandible on each side to 

 the eye; short secondaries tipped with white, forming a narrow band across the wing; underparts 

 white; bill and legs black; a curved vertical white line on each side of the bill; iris bluish black. 

 Total length about 18 inches, gape 2 - 0, wing 8"1, tail 3 - 4, tarsus T35. 



Adult Female. Resembles the male. 



Adult in winter. Differs from the adult in summer dress in having the throat white instead of brownish 



