340 COLYMBID.E. 



been seen as far north as Nova Zambia, and was found, as 

 stated by Captain James C. Ross, at Boothia, and in every 

 part of the Arctic regions visited by the late expeditions. 



Of this bird Mr. Audubon says, " the Red-throated Diver 

 is found, in tolerable abundance, on the sea-coast of the 

 United States during autumn, Avinter, and early spring, from 

 Maryland to the extremities of Maine. The younger the 

 birds the farther south do they proceed to spend the winter, 

 and it is rare to see an old bird, of either sex, at any season 

 to the south of the Bay of Boston. Farther eastward they 

 become more common, and they may be said to be plentiful 

 towards the entrance of the Bay of Fundy, in the vicinity of 

 which a few remain and breed. I found some in December, 

 January, and February, at Boston, where I procured males, 

 females, and young birds. The old had the red patch on 

 the throat darker than in the breeding-season ; the delicate 

 grey and white lines on the neck were as pure as I observed 

 them to be during summer in Labrador ; and I have since 

 been convinced that birds of this family undergo very little 

 if any change of colouring after they have once acquired their 

 perfect plumage, the Loon and the Black-throated Diver 

 being included in this remark." 



East of our own shores the Red-throated Diver, in its 

 immature state, or winter dress, is taken on the coasts of 

 Holland and Picardy ; it has been taken also in Switzerland, 

 Provence, and Italy ; and M. Temminck states that this 

 species also occurs in Japan. 



In the adult bird the beak is of a bluish horn colour ; the 

 irides red ; the front and top of the head, chin, cheeks, and 

 sides of the neck ash-grey, varied with lighter grey lines and 

 spots ; back of the neck almost black, with short longitudinal 

 lines of white ; the scapulars, wing-coverts, back and upper 

 tail-coverts nearly black, speckled with white ; quill-primaries 

 black, without spots or streaks ; on the throat the red colour 



