BIRDS. 107 



2. Xanthornus flavus. G. R. Gray. 

 Plate XLV. 

 Oriolus flavus, Gmel. 



Psarocolius flaviceps, Wagl. Syst. Avium. 

 Troupiale a tete jaune, Azara, No. 66. 



This species is common at Maldonado in large flocks. 

 Leistes anticus. G. R. Gray. 



Icterus anticus, Licht. Cat. p. 19. 

 Agelaius virescens, Vieill. Ency. Meth. 543. 

 Psarocolius anticus, Wagl. 

 Le Dragon, Azara, No. 65. 



This bird is exceedingly abundant in large flocks on the grassy plains of La 

 Plata. It is noisy, and in its habits resembles our starling. 



1. Agelaius fringillarius. G. R. Gray. 



Icterus fringillarius, Spix, Av. Sp. No. 1. t. lxv. fig. 1 & 2. p. 68. 

 Psarocolius sericeus, juv., Wagl. 



This species is rare at Maldonado, but appears more common on the banks 

 of Parana in Lat. 31°. S. Spix says (vol. i. p. 68, Birds of Brazil), it is found 

 in Minas Geraes. 



2. Agelaius chopi. Vieill. 



Turdus cureeus, Gmel. 



Le Chopi, Azara, No. 62. 



Icterus unicolor, Licht. 



Icterus sulcirostris, Spix, Av. Br. pi. 64. f. 2. 



This species is common in flocks on the pasture grounds of Chile, and along 

 the whole western shore of the southern part of the continent. In Chile it is 

 called, according to Molina, " cureu." It is a noisy, chattering bird, and runs 

 in the manner of our starlings. It can be taught to speak, and is sometimes 

 kept in cages. It builds in bushes. 



MOLOTHRUS NIGER. Gould. 



Tanagra bonariensis, Gmel. 

 Icterus niger, Dand. 

 Passerina discolor, Vieill. 

 Icterus maxillaris, D'Orb. 8? Lafr. 

 Icterus sericeus, Licht. 

 Psarocolius sericeus, Wagl. 



This Molothrus is common in large flocks on the grassy plains of La Plata, 

 and is often mingled with the Leistes anticus, and other birds. In the same flock 



