74 
VIREO FLAVIFRONS. 
strips of the bark of grape vines, moss, lichen, &c. and 
lined with line fibres of such like substances ; the eggs, 
usually four, are white, thinly dotted with black, chiefly 
near the great end. Winged insects are its principal 
food. 
Whether this species has been described before or 
not, I must leave to the sagacity of the reader, who has 
the opportunity of examining European works of this 
kind, to discover.* I have met with no description in 
Pennant, Buffon, or Latham, that will properly apply 
to this bird, which may perhaps be owing to the 
imperfection of the account, rather than ignorance of 
the species, which is by no means rare. 
The yellow-throated flycatcher is five inches and a 
half long, and nine inches from tip to tip of the expanded 
wings ; the upper part of the head, sides of the neck, 
and the hack, are of a fine yellow olive ; throat, breast, 
and line over the eye, which it nearly encircles, a deli- 
cate lemon yellow, which, in a lighter tinge, lines the 
wings ; belly and vent, pure silky white ; lesser wing- 
coverts, lower part of the back, and rump, ash ; wings, 
deep brown, almost black, crossed with two white bars ; 
primaries, edged with light ash, secondaries, with 
white ; tail, a little forked, of the same brownish black 
with the wings, the three exterior feathers edged on 
each vane with white ; legs and claws, light blue ; the 
two exterior toes united to the middle one, as far as the 
second joint ; bill, broad at the base, with three or four 
slight bristles, the upper mandible overhanging the 
lower at the point, near which it is deeply notched ; 
tongue, thin, broad, tapering near the end, and bifid ; 
the eye, is of a dark hazel ; and the whole bill of a 
dusky light blue. The female differs very little in 
colour from the male ; the yellow on the breast, and 
round the eye, is duller, and the white on the wings 
less pure. 
* See Orange-throated Warbler, Latham, Syn. ii, 481, 103, 
