BIRDS. 205 



This fine species appears to be of frequent occurrence throughout the western coasts of South 

 America. 



LARUS BEIDGESII, Fraser. 



Larus Bridgesii, Fraser, Proc. Zool. Soc. 1845, 16. 



Larus modestus, Tschddi, Faun. Peru. Aves, 1846, 306, PI. xxsv. 

 Gay, Fauna Chilena, Aves, 483 

 Of this handsome little Grull, specimens of both sexes are in the collection of the Expedition. 

 Though undoubtedly the species described and figured by Tschudi as above cited, the present 

 specimens are in apparently more mature plumage than those obtained by him on the coast of 

 Peru. Instead of the entire plumage being dark cinereous (or, more properly, plumbeous,) the 

 head in the male specimen now before us is nearly pure white, gradually shading into the dark 

 cinereous, which prevails throughout the entire other plumage. In the female the white of the 

 head is not so clear nor extended, but is still nearly pure in front and on the throat. 



Quills black; secondaries tipped with white, forming a conspicuous oblique bar on the closed 

 wing. Eump, upper and under tail coverts cinereous, lighter on the last; inferior coverts of 

 the wing dark plumbeous. Tail, in the male, dark cinereous, with a wide subterminal band 

 of black and tipped with white. In the female the tail is a shade lighter, and the black band 

 is not so wide, and is more irregular and imperfect on the central feathers. Bill and feet black.* 



PODICEPS LEUCOPTERUS, King. 



Podiceps leucopterus, King, Zool. Jour. IV, 1828, 101. 

 G-AY, Fauna Chilena, Aves, 463. 

 VuLG. White-winged Grebe. Guala. 

 Figure. — Jard. and Sbl. 111. Orn. Ill, PI. cvii. 

 Appears to be frequently met with on the coast of Chile. Specimens in the collection are 

 essentially as described and figured above. 



PODILYMBUS BREVIROSTRIS, Gray. 



Podilymbus irevirostris, Gray, Gen. of Birds III, 1846, 633, PI. clxxii. 

 VuLG. Picurio. 

 Several specimens, in plumage as represented in the plate above cited, are in the present col- 

 lection. 



PHALACROCORAX BRASILIANUS, (Gmelin.) 

 Plate XXVIII. Adult male. 



Procellaria hraziliana, Gm. Syst. Nat. I, 1788, 564. 

 Phalacrocorax niger, King, Zool. Jour. IV, 1828, 101. 



• Of Larus hamatorhynchus, (Vigors,) another species of western South America, though not in the present collection, it may 

 not be inappropriate to say that specimens apparently mature diifer essentially from both Mr. Vigors's description and the figure 

 in Jard. & Selb. 111. Orn. II, PI. cvi. The head above, back, and wings are dark plumbeous, neck behind throat and entire 

 under parts tinged with cmereous. Rump, upper tail coverts, and tail white ; the first tinged with cinereous. Bill and feet 

 bright red; the former large, as described and very correctly represented in the plate just cited. The descriptions and figure 

 referred to relate either to the young bird or to the winter plumage of the species, but are sufficient for ite easy recognition. 



