COLYMBUS 875 



brown, tinged with green on the outside, the middle of the webs dull 

 fleshy yellow ; iris dark brown. Culmen 2'5, wing 1TO, tail 2'1, tarsus 

 2'75 inch. Sexes alike. In winter the throat and sides of face are white. 



Hob. Northern portions of the Old and New Worlds; in 

 Europe north to Iceland and Greenland, south in winter to the 

 Mediterranean, Black Sea, and to Lower Egypt ; in Asia north 

 to Kamchatka, south in winter to Japan and China ; in America, 

 in winter, nearly across the United States. 



This species flies swiftly, but is less frequently seen on the 

 wing than on the water ; there its movements are graceful and 

 easy, and it dives with ease, remaining for some time below the 

 surface. Its note is a loud weird shriek, like that of a drowning 

 person. It nests on the borders of fresh- water lakes, the nest 

 being merely a small collection of rushes or grass close to- 

 the water, and its eggs, 2 in number, are usually deposited 

 early in June, and are olivaceous brown or olivaceous, spotted 

 and blotched with black, but sometimes plain unspotted 

 olivaceous brown ; they measure about 2*85 by 1*79. 



1210. BLACK-THROATED DIVER. 

 COLYMBUS ARCTICUS. 



Colymbus arcticus, Linn. Syst. Nat. i. p. 221 (1766) ; (Naum.), xii. p. 418. 

 Taf. 328 ; Hewitson, ii. p. 451, pi. cxxiii. fig. 2 ; Gould, B. of E. v. 

 pi. 394 ; id. B. of Gt. Brit. v. pi. 44 ; Temminck and Schlegel, 

 Faun. Jap. Aves, p. 123 ; Dresser, viii. p. 615, pi. 627 ; Ogilvie 

 Grant, Cat. B. Br. Mus. xxvi. p. 492 ; Tacz. F. 0. Sib. 0. p. 1262 ; 

 Saunders, p. 713 ; Kidgway, p. 7 ; Lilford, vi. p. 104, pi. 46. 



Plongeon a gorge noire, French ; Strolaga mezzana, Ital. ; Polar - 

 taucher, German ; Parelduiker, Dutch ; Polar-lorn, Danish ; Stor- 

 lom, Norweg. ; Stor-lom, Swed. ; Kuikka, Finn. ; Gagara polosa- 

 taya, Russ. ; 0-hamu, Jap. 



ad. (Archangel.) Crown, nape, and hind neck ashy grey, darker on 

 the forehead and brownish on the sides of the head ; upper parts glossy 

 black marked with white cross bars ; wings and tail black, the former- 

 spotted with white ; chin and throat black, tinged with purple, the sides 

 of the throat striped with white, and a patch of white stripes on the upper 

 throat ; under parts white, the flanks black ; bill bluish black, paler at 

 the base ; outer tarsus, hind and outer toes, and two marks across the webs 

 blackish brown tinged with green, the rest of the legs and the webs 

 reddish white. Culmen 2'6, wing 11'7, tail 2'5, tarsus 2'9 inch. Sexes 



