1883.] Barrows on Birds of the Lower Uruguay. C) I 
boat, you see a pair of these blue beauties swaying on a slender 
bush and showing at each turn of the head the snowy crown with 
its little dash of garnet, while the whole picture lies mirrored in 
the quiet water, it requires a prompt choking of all poetic feeling 
to make sure of your bird. Otherwise the next instant may find 
you looking vacantly at the swa}dng twig and wondering where 
the birds — and your senses — are. Although shy and suspicious 
the birds are really plenty enough, and after you learn where to 
look for them you may find them in pairs at Concepcion any day 
in the year. Somewhere among these river-fringes the nest must 
be built, yet it was always sought in vain. 
The male during the breeding season has a strong, sweet war- 
ble recalling that of the Pine Grosbeak, but at other times both 
sexes are very silent, giving only a faint, quick chirp of alarm 
as they disappear. 
18. Tanagra striata ( Gm.) . Naranjero (Orange Bird). 
— This well known and widely distributed species is abundant at 
Concepcion through the year and many undoubtedly breed there, 
but I did not meet with the nest. When seen at a little distance 
and in motion this bird always reminded me of the Baltimore 
Oriole, to which, indeed, it bears no little resemblance both in 
color and action. 
The name “Naranjero” comes from a popular belief that the 
bird feeds on ripe oranges, and is given to several different birds 
which frequent the orange trees more or less. I have never seen 
any evidence, however, of any of the fruit being eaten by them. 
19. Tanagra cyanoptera Vieill. Naranjero Azul (Blue 
Orange Bird). — The least common of the Tanagers, but oc- 
casionally observed, both summer and winter, A female taken 
November 6 had evidently just finished incubating. 
20. Pyranga saira ( Spzx.). — But little more abundant than 
the preceding, perhaps really not as plenty, but its red dress 
makes it much more conspicuous. It was only observed during 
the early spring, and no evidence of its ever breeding in the 
vicinity of Concepcion was obtained. The specimens observed 
were silent, sluggish, and not very wary. 
21. Saltator aurantiirostris Vieill . Juan-chivirro 
(imitation of its note) . — The voice of this bird is much better 
known than his form. It would be impossible for one to row 
along the woody shore of the Uruguay a hundred yards in spring- 
