RED-THROATED DIVER. 519 



RED-THROATED DIVER. 



(Colymbus septentrionalis, Linn. Lath. Ind. ii. p. 801. sp. 5. Bonap 

 Synops. No. 370. Temm. Man. d'Orn. ii. 916. Rich, and Swains 

 North. Zool. ii. p. 476. Vieill. Gal. des. Ois. 282. [adult.] Red 

 Throated Ducker or Loon, Edwards, pi. 97. Penn. Arct. Zool 

 ii. No. 443. Le Plongeon a Gorge Rouge, Buff. PI. Enlum 

 308. [adult]. Colymbus striatus, C. stellatus, and C. borealis, [dif- 

 ferent states of the young]. Le Petit Plongeon, Buff. Ois. viii. p 

 254. tab. 21. Id. PI. Enlum. 992. [young]. Speckled Diver 

 Penn. Brit. Zool. p. 139. t. K. [young].) 



Sp. Charact. — The bill (from the rictus) about 3 inches long, 

 slightly recurved ; the edges much inflected ; the lower mandible 

 grooved : tail composed of 20 feathers. — Adult blackish, beneath 

 white, head and neck lead-colored; the neck beneath with a long 

 reddish stripe. Young ashy-brown, with minute marginal spots 

 on the dorsal plumage ; beneath white. 



This species is again a general inhabitant of the north- 

 ern regions of both continents ; from whence few migrate 

 to any great distance, except the young, and these are seen 

 not uncommonly along the coasts of the United States in 

 the course of the winter. According to Richardson, they 

 frequent the shores of Hudson's Bay up to the extremity of 

 Melville Peninsula, and are also abundant on the interior lakes 

 where they breed. The eggs are 2, laid on a little down, 

 by the margin of the water, and are of a pale oil-green color, 

 35 lines long by 21 wide. Temminck however, describes 

 the eggs as of an olive-brown, marked with a few brown 

 spots. Mr. Audubon found them nesting on the coast of 

 Labrador near small fresh-water lakes. The food is similar 

 with that of the preceding species. Fleming says that they 

 breed in Zetland and the Orkneys. In Greenland and Ice- 

 land they also lay among the herbage on the shores con- 

 tiguous to water, and make a nest of moss and grass, 

 lining it with down. The young of this species, called the 



