Pik DE eer 
LONG-TAILED Duck. Edw. v. 280. 
Penn. Br. Zocl. 283. 
Lath. Gen. Syn. 6. p. §28. 73. 
Swallow-tailed Shieldrake. W471. Orn. p» 304. 
Le Canard a longue queue d’Iflande. Brif. Orn. 6. 379. 
Canard de Miclon. Buff: Oif,—PI. Enl. 1008. 
This fpecies varies exceedingly in the colours of the plumage. In 
forne the principal colour is a kind of chocolate brown, in others 
deep black. It varies no lefs alfo in the difpofition of the white 
{paces on the head, neck, and body in different birds. In the male, 
the fore part and fides of the head are of a reddifh grey, with an oval 
black fpot on each fide of the neck, a little below the head; the 
remainder of the neck white. ‘The female has only the fides of the 
head white (except the belly), the neck being of a dufky black in 
general ; though fpecimens have been feen, that much refemble the 
adult male bird. ‘The colour of the legs vary much in different 
{pecimens alfo. 
Linnzus divided the fuppofed male and female into two fpecies ; 
the firft he called Anas GLACIALIS, the other ANas HyEMALIs. 
Later authors, who have had more opportunity of obferving their 
manners of life, have fuppofed them only the two fexes of one 
{pecies. 
Mr. Pennant, in his Arétic Zoology, appen. defcribes the two 
Linnzan fpecies as the two fexes of ANAs GLaciA ts; and Mr. 
Latham fince, in his Index Ornithologicus, places Anas Glacialis as 
the 
