PLACE. 
112. 
WHITE- 
BACKED THR. 
DescRIPTION. 
FeMate, 
PLACE AND 
Mannegs, 
i. Gam ss SAN SAS Aa Sig a 
barred with buff: quills brown: under parts of the body dull 
rufous: tail two inches anda half in length; fhape of it fomewhat 
cuneiform: legs brown. 
Suppofed to come from Cayenne. Seen, among others, in a 
collection from that place. 
L’Alapi de Cayenne, Buf. oif. iv. p. 485.—P/. enl. 701. f. 2 
Trifle bigger than the laft: length fix iaches. The 
throat, fore part of neck, and breaft, are black ; the reft of 
the under parts afh-colour: the upper part of the head, neck, 
and back, are olive brown: the wings deep cinereous brown: on 
the middle of the back is a white fpot; and the wing coverts are 
marked with {mall {pots of the fame: the tail is cuneiform and 
blackifh: the legs pale yellow. 
The female wants the white fpot on the back: the chin is 
white: the reft of the under parts incline to rufous: the fides of 
_ the vent, and under tail coverts, greyifh afh ; and the tips of the 
wing coverts pale rufous. It has alfo the upper parts of the | 
body paler than in the male. Befides this, it is obferved that the 
colours of both male and female differ from variety. 
Thefe two laft are found in the thick woods of Guzana, where 
they are found in vaft troops running on the ground, and leaping 
at times on the low branches of trees, but fly very feldom to 
any diftance ; are very agile birds; feed on ants; and have a qua- 
vering kind of note, followed by a tbat cry, often eta 
when anfwering:one another, : : 
Le: 
