Birds of Canada. m 



rivers, and threatening destruction to all the 

 finny tribe. The Common Cormorant is thirty- 

 seven inches in length ; the color, bluish-black, 

 gular sac, yellow, with a broad white band at 

 the base. 



DOUBLE-CRESTED CORMORANT. 



Graculus dilophus. The Double-crested 

 Cormorant. 



This species is not so well known as the pre- 

 ceding. * Its habits arc similar to the Common 

 Cormorant. Breeds in Labrador. The head, 

 neck, lower part of the back, and entire under 

 surface, is greenish-black ; upper mandible, dark 

 brown ; lower, yellow ; iris, green ; legs and feet, 

 black ; gular sac, orange ; behind each eye is a 

 tuft of loose feathers, which form the crest. 



