(CHIVI GREENLET.)
+Contramaestre gaviero+, _Azara, Apunt._ ii. p. 34. +Sylvia chivi+,
_Vieill. N. D._ xi. p. 174. +Vireosylvia chivi+, _Baird, Rev. A.
B._ p. 337; _Scl. et Salv. P. Z. S._ 1869, p. 160 (Buenos Ayres);
_Berl. et Jher. Zeitschr. ges. Orn._ 1885, p. 115. +Vireo chivi+,
_Gadow, Cat. B._ viii. p. 295.
_Hab._ South America, from Colombia down to Buenos Ayres.
A single specimen of this Greenlet was found in a collection made by Mr.
Haslehurst near Buenos Ayres. As the species occurs in Rio Grande do
Sul (_Berlepsch_) and Paraguay (_Azara_), its occasional appearance in
Eastern Argentina is quite probable. Whether the bird is really distinct
from the widespread _Vireo olivaceus_ seems to be a question which is
not yet finally settled.
Azara, describing this species, says it is one of the commonest in
deep woods, where it moves about among the terminal twigs, without
ever rising to the tops of the trees or flying down to the brush or the
ground. It is active, and extremely restless in manner; and in searching
after and taking the small insects and spiders on which it lives
it climbs about the twigs, assuming every position, and frequently
suspending itself, head downwards, by its feet. It has a full
pleasing voice of considerable power, heard incessantly in the woods,
particularly in the love-season. The nest is a slender beautiful
structure, even surpassing that of the Humming-birds, constructed of
thin dry leaves outside, smoothly attached to the rest with spiders'
webs, while the inside is formed of fine fibres and cotton.