BIRDS. 
107 
2. Xanthornus flavus. G. R. Gray. 
Plate XLY. 
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 curseus, 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. 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 
