Class II. RED THROATED DIVER. 169 



These birds frequent our seas, lakes, and 

 rivers in the winter. On the Thames they are 

 called sprat loons, for they attend that ' fish 

 during its continuance in the river. They are 

 subject to vary in the disposition and form of 

 their spots and colors ; some having their necks 

 surrounded with a speckled ring ; in some th^ 

 spots are round, in others oblong. + s- 



Colymbus septentrionalis. C. Le Plongeon a gorge rouge. 4. J^gn 



corpore supra nigricante sub- Brisson av.vi. l\\. Tah.'iu throated 



tiis albo, collo antice ma- Jig. 1. Hisf d'ois. viii. 264. ro.T 



i cula scutiformi ferruginea. PL Enl. 308. 



Lath, Ind. orn, 801. id. Islandis & Norvegis Loom v. 



. Syn. vi. 344. Lumme, Danis Lomm. 



Edw. av. 97. Brunnick, 132. 



Gunner. Tab. 2. f. 2. Br. Zool. 140. Arci. Zool. ii. 



Colymbus septentrionalis. G'iB. 234.. )^.f3Q i^i^-'C ■■ >0!' . 



I4ii._bOQ^ ,,, ^,,x:: ■ 



JLHIS species breeds in the northern parts of 

 Scotland, on the borders of the lakes ; but mi- 

 grates southward during winter. It lays two 

 eggs. The sexes do not differ in colors, and 

 are a distinct kind from the black throated, the 

 Lumme oi the No}'Zi}egians. Its shape is more ele- 

 gant than that of the others. The weight is three Descrh- 

 pounds ; the length, to the tail end, two feet ; to ^^°^' 

 that of the toes, two feet four inches; the breadth 



