406 
BLUE GREEN WARBLER. 
when inflated with air, resembles, in bulk, colour, and surface, 
a middle sized orange ; chin, cream coloured ; under the eye 
runs a dark streak of brown; whole upper parts, mottled 
transversely with black, reddish brown, and white ; tail short, 
very much rounded, and of a plain brownish soot colour; 
throat, elegantly marked with touches of reddish brown, 
white, and black ; lower part of the breast and belly, pale 
brown, marked transversely with white ; legs, covered to the 
toes with hairy down of a dirty drab colour ; feet, dull yellow ; 
toes, pectinated ; vent, whitish ; bill, brownish horn colour ; eye, 
reddish hazel. The female is considerably less ; of a lighter 
colour, destitute of the neck wings, the naked yellow skin on 
the neck, and the semicircular comb of yellow over the eye. 
On dissecting these birds, the gizzard was found extremely 
muscular, having almost the hardness of a stone ; the heart 
remarkably large ; the crop was filled with brier knots, con- 
taining the larvae of some insect, quantities of a species of green 
lichen, small hard seeds, and some grains of Indian corn. 
BLUE-GREEN WARBLER. — SYLVIA RARA. 
Plate XXVII. Fig. 2. 
Peak's Museum, No. 7788. 
VERM1VORA? RARA. — Jardine.* 
Sylvia rara, Bonap. Synop. p. 82. — Aud. pi. 49, male ; Orn. Biog. i. p. 258. 
This new species, the only one of its sort I have yet met 
with, was shot on the banks of Cumberland River, about the 
* This species was discovered by Wilson, and does not seem to have been 
again met with by any ornithologist except Mr Audubon, who has figured it, 
and added somewhat to our knowledge of its manners. 
“ It is rare in the middle districts, and is only found in the dark recesses 
of the pine swamp. On its passage through the states, it appears in Louisiana, 
in April. They are met with in Kentucky, in Ohio, upon the Missouri, and 
along lake Erie.” Mr Audubon has never seen the nest. In spring the song 
is soft and mellow, and not heard beyond the distance of a few paces ; it is 
performed at intervals, between the times at which the bird secures an insect, 
which it does with great expertness, either on the wing, or among the leaves 
of the trees and bushes. While catching it on the wing, it produces a slight 
