GREAT NORTHERN DIVER. 425 



NA TA TORES. COL YMBID^E. 



THE GREAT NORTHERN DIVER. 



Colymbus glacialis. 



Colymbus glacialis, Great Northern Diver, PENN. Brit. Zool. vol. ii. p. 165. 



immer, Imber 



glacialis, Great Northern 



immer, Imber 



glacialis, Great Northern 



Plongeon imbrim, 



167. 



MONTAGU, Ornith. Diet. 



BEWICK, Brit. Birds, vol. ii. p. 196. 

 FLEM. Brit. An. p. 132. 

 SELBY, Brit. Ornith. vol. ii. p. 406. 

 JENYNS, Brit. Vert. p. 255. 

 GOULD, Birds of Europe, pt. xiii. 

 TEMM. Man. d'Ornith. vol. ii. p. 910. 



COLYMBUS. Generic Characters. Bill about as long as the head ; strong, 

 straight, rather compressed, pointed ; upper mandible the longer of the two, edges 



