BIRDS. 201 



The coast of Chile appears to be the most nortliern locality visited by the beautiful species of ' 

 goose now before us. 



The difference in the colors of the sexes on this species is very remarkable, and quite unusual 

 in birds of this group. The male in mature plumage is perfectly white, while the female pre- 

 sents the varied colors represented in our plate. It is one of the most handsome of the birds of 

 this family, and appears to be of rather common occurrence on the southerly coast of South 

 America. 



BERNICLA MAGELLANICA, (GmeUn.) 



Plate XXIV. Male and female. 



Anas magellanica, GtM. Syst. Nat. II, 1788, 505. 

 Bernicla magellanica, (GrM.) Gay, Fauna Chilena, Aves, 443. 

 VuLG. Magellanic Goose. Gancillo. 

 Frequently met with in Chile, though apparently only during its migrations. Specimens in 

 the collection are labelled as having been obtained in the interior. 



The females in all the specimens before us are uniformly different in colors from the males. 

 Both sexes are represented in our plate. One specimen in the collection which we regard as a 

 young male, has the breast and sides striped transversely with brownish black, similar to the 

 markings of the upper parts of the body. 



BERNICLA MELANOPTERA, (Eyton.) 



Anser melanopterus, Etton, Monog. Anat. 1838, 93. 



Bernicla melanoptera, (G-ray) GtAY, Fauna Chilena, Aves, 443. 



Figure. — Voy. Beagle, Birds, PI. 1. 



VuLG. Black-winged Goose. Fiuquen. 

 This species, like that immediately preceding, appears to be an inhabitant of the interior of 

 the country. It seems to be a constant resident in Chile, frequenting the plains, and, as indi- 

 cated by labels on specimens in the present collection, the lower valleys of the Andes. 



According to Lieutenant Gilliss, this goose, and the two preceding species, are found in the 

 lakes of the higher Andes, "perhaps 7,000 feet above the ocean." Of the present bird he ob- 

 serves, "The Fiuquen frequents a small body of water near the Portillo pass in such numbers 

 that it gives name to it, ' Valle de los Piuquenes.' " 



MARECA CHILOENSIS, (King.) 



Anas cMloensis, King, Proc. Zool. Soc. London, 1830, 15. 



Mareca cMloensis, (Eyton) GtAY, Fauna Chilena, Aves, 447. 



VuiG. Chile Widgeon. Pato real. 



Figure. — Eyton, Monograph, PL xxi. 

 This beautiful species, which in Chile bears the popular name of Pato real, or Eoyal Duck, 

 apparently in no very unjust allusion to its handsome plumage and graceful form, appears to 

 be of frequent occurrence in the rivers and lakes of that country. It is one of the several species 

 that we especially wish to see ranked as birds of the United States. 



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