NATATORES. 



337 



Gilliss, Ast. Exp. to Chili, Birds, Plate XXIII ; Voj. Coquille, Ois. 

 Plate L (female). 



This beautiful species appears to be one which has a southwardly 

 migration from the northern countries of South America, analogous to 

 the well-known migrations of the species of North America. Specimens 

 in the collection of the Expedition were obtained at Tierra del Fuego. 



The difference in the color of the sexes of this Goose is quite re- 

 markable, the male being entirely white, and the female variegated 

 and barred with black. According to Captain F. Bernsee, whose notes 

 are published in the Proceedings of the Philadelphia Academy, VII, 

 p. 288, this bird is partial to fresh waters, and was found by him 

 abundant at the Falkland Islands, where he was wrecked. 



4. Bernicla magellanica [Gmelin). — The Magellanic Goose. 



Anas magellanica, picta et leucoptera, Gm. Syst. Nat. I, pp. 504, 505 (1788). 



Gilliss's Ast. Exp. to Chili, Birds, Plate XXIV; Brown's 111. Plate 

 XL; Buff. PI. Enl. 1006 (female). 



Specimens of this species are from Tierra del Fuego, and very fine 

 specimens are also in Lieut. Gilliss's collection from Chili, made by the 

 United States Astronomical Expedition to the Southern Hemisphere, 

 under his charge. The male of this species is white, with transverse 

 narrow bars of black, but the female is quite different, being of dark 

 chestnut-brown, and somewhat resembling that immediately succeed- 

 ing. According to Captain Bernsee, as above cited, this bird also was 

 abundant at the Falkland Islands. 



5. Bernicla inornata (King). — The Brown Goose, 



Anser inornatus, King, Proc. Zool. Soc. London, 1830, p. 15. 



Gray, Gen. Ill, Plate CLXV. 



Also from Tierra del Fuego. This name inornata, deserves to be 

 abolished on account of its singular inappropriateness, applied as it is 

 to one of the handsomest of the South American Geese. 



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