xl NATURAL HISTORY. 



Is so similar in its habits to the preceding species, that the same remarks equally 

 apply to both. This is, however, more generally known as a European bird, and 

 is famous for the beautifully elastic down from which it receives its name. That of the 

 .S'. Spectabilis is equally excellent, and is collected in great quantities by the inha- 

 bitants of the Danish colonies in Greenland, and forms a valuable source of revenue to 

 Denmark. Vast quantities of this down is also collected on the coast of Norway, and 

 in some parts of Sweden. 



33.— HERALDA GLACIALIS {Long-tailed Duck). 



HERALDA GLACIALIS.— BicA ; Fuim. Bur. Amer.— vol ii., p. 460. 

 ANAS GLACIALIS.— rcmm.— vol. ii., p. 860. Gmel.—voL i., p. 529. Lath : hid. Orn.— vol. ii., p. 864. 

 Sab : Tram. Linn. Soc. — vol. xii., p. 555. A/>p. to Parry's \st Voyage — p. ccviii. 

 Kick : App. to Parry's id Voyage — p. 373. 



ANAS HIEMALIS.— ft* .- F«k«. Green/.— p. 71. 

 LONG-TAILED DUCK.— Penn ; Brit. ZooL— vol n., p. 268. Arct. ZooL— vol ii., p. 566. 

 Lath : Syn.—vo\. vi., p. 468. 



The most noisy and most numerous of the ducks that visit the shores of Boothia. 

 Being a quicker diver, and of more rapid and irregular flight, fewer of this species than 

 of the other were shot. Its down is equally valuable with that of the two preceding 

 species, but is of a darker colour. Its flesh is most e.xcellent food. 



The pecuhar structure of the trachea of this and the two preceding birds, are. 

 described and figured by Captain Sabine, loc. cit. 



34._ANSER BERNICLA (Brent Goose). 



ANSER BERNICLA.— RifA .- Faun. Bar. Amer.— vol li., p. 469. 

 ANAS BERNICLA.— r«nm.— vol. li., p. 825. Gmel.—vo\. i., p. 513. Lath : Ind. Urn.— vol ii., p. 844. 

 Fab: Faun. Grwnl. — p. 41. Sub: in Franklin's Journey — p. 698. Sab: Supp. 

 to Parry's \st Voyage — p. 207. Rich : in App. to Parry's 2d Voyage — p. 367. 

 Ross, Parry's Polar Voyage — p. 196. 

 BRENT GOOSE.— Pcnn : Brit. ZooL— vol ii., p. 151. Arct. Zool.—vo\. ii., p. 551. 

 Lath: Syn. — vol. vi. p. 467. 



